期刊文献+
共找到3,905篇文章
< 1 2 196 >
每页显示 20 50 100
Efficient electrooxidation of biomass-derived aldehydes over ultrathin Ni V-layered double hydroxides films 被引量:1
1
作者 Biying Liu Zhikeng Zheng +4 位作者 Yaoyu Liu Man Zhang Yuchen Wang Yangyang Wan Kai Yan 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第3期412-421,I0012,共11页
Selective upgrading of C=O bonds to afford carboxylic acid is significant for the petrochemical industry and biomass utilization.Here we declared the efficient electrooxidation of biomass-derived aldehydes family over... Selective upgrading of C=O bonds to afford carboxylic acid is significant for the petrochemical industry and biomass utilization.Here we declared the efficient electrooxidation of biomass-derived aldehydes family over NiV-layered double hydroxides(LDHs) thin films.Mechanistic studies confirmed the hydroxyl active intermediate(-OH*) generated on the surface of NiV-LDHs films by employing electrochemical impedance spectroscopy and the electron paramagnetic resonance spectroscopy.By using advanced techniques,e.g.,extended X-ray absorption fine structure and high-angle annular dark-field scanning transmission electron microscopy,NiV-LDHs films with 2.6 nm could expose larger specific surface area.Taking benzaldehyde as a model,high current density of 200 mA cm^(-2)at 1.8 V vs.RHE,81.1% conversion,77.6% yield of benzoic acid and 90.8% Faradaic efficiency were reached,which was superior to most of previous studies.Theoretical DFT analysis was well matched with experimental findings and documented that NiV-LDHs had high adsorption capacity for the aldehydes to suppress the side reaction,and the aldehydes were oxidized by the electrophilic hydroxyl radicals formed on NiV-LDHs.Our findings offer a universal strategy for the robust upgrading of diverse biomass-derived platform chemicals. 展开更多
关键词 NiV-LDHs FILMS Hydroxyl radicals Electrocatalytic oxidation Biomass-derived aldehydes
下载PDF
A perspective on recent findings and future strategies for reactive aldehyde removal in spinal cord injury
2
作者 Seth A.Herr Anna J.Prall Riyi Shi 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第10期2190-2191,共2页
Acrolein in spinal cord injury:The propensity of reactive aldehydes such as acrolein to both initiate and perpetuate tissue damage after spinal cord injury (SCI) is well established.Formed primarily from lipid peroxid... Acrolein in spinal cord injury:The propensity of reactive aldehydes such as acrolein to both initiate and perpetuate tissue damage after spinal cord injury (SCI) is well established.Formed primarily from lipid peroxidation,acrolein is known to be one of the most reactive aldehydes.Acrolein will quickly overwhelm endogenous clearance mechanisms and antioxidants,and form adductswith lipids,proteins,and DNA. 展开更多
关键词 aldehydeS finding primarily
下载PDF
Study on the catalytic degradation of sodium lignosulfonate to aromatic aldehydes over nano-CuO:Process optimization and reaction kinetics
3
作者 Yingjie Song Shuqi Zhong +5 位作者 Yingjiao Li Kun Dong Yong Luo Guangwen Chu Haikui Zou Baochang Sun 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2023年第1期300-309,共10页
As one of the few renewable aromatic resources,the research of depolymerization of lignin into highvalue chemicals has attracted extensive attention in recent years.Catalytic wet aerobic oxidation(CWAO)is an effective... As one of the few renewable aromatic resources,the research of depolymerization of lignin into highvalue chemicals has attracted extensive attention in recent years.Catalytic wet aerobic oxidation(CWAO)is an effective technology to convert lignin like sodium lignosulfonate(SL),a lignin derivative,into aromatic aldehydes such as vanillin and syringaldehyde.However,how to improve the yield of aromatic aldehyde and conversion efficiency is still a challenge,and many operating conditions that significantly affect the yield of these aromatic compounds have rarely been investigated systematically.In this work,we adopted the stirred tank reactor(STR)for the CWAO process with nano-CuO as catalyst to achieve the conversion of SL into vanillin and syringaldehyde.The effect of operating conditions including reaction time,oxygen partial pressure,reaction temperature,SL concentration,rotational speed,catalyst amount,and NaOH concentration on the yield of single phenolic compound was systematically investigated.The results revealed that all these operating conditions exhibit a significant effect on the aromatic aldehyde yield.Therefore,they should be regulated in an optimal value to obtain high yield of these aldehydes.More importantly,the reaction kinetics of the lignin oxidation was explored.This work could provide basic data for the optimization and design of industrial operation of lignin oxidation. 展开更多
关键词 NANO-CUO Sodium lignosulfonate Catalytic wet aerobic oxidation(CWAO) Aromatic aldehyde Reaction kinetics
下载PDF
Relationship Between Drought Resistance and Betaine Aldehyde Dehydrogenase in the Shoots of Different Genotypic Wheat and Sorghum 被引量:5
4
作者 骆爱玲 刘家尧 +2 位作者 马德钦 王学臣 梁峥 《Acta Botanica Sinica》 CSCD 2001年第1期108-110,共3页
不同基因型小麦 (TriticumaestivumL .)和高粱 (SorghumvulgareL .)的抗旱性与其种芽中的甜菜碱醛脱氢酶(BADH)的含量存在密切关系。
关键词 drought resistance betaine aldehyde dehydrogenase WHEAT SORGHUM
下载PDF
Preparation of phenol formaldehyde resin from phenolated wood 被引量:8
5
作者 李改云 秦特夫 +1 位作者 塔村真一郎 池田敦 《Journal of Forestry Research》 CAS CSCD 2004年第3期211-214,共4页
The technique for preparing phenol formaldehyde resin from phenolated wood (PWF) and its characters were studied and analyzed. Poplar (Populus spp.) wood meal was liquefied by phenol in the presence of sulfuric acid a... The technique for preparing phenol formaldehyde resin from phenolated wood (PWF) and its characters were studied and analyzed. Poplar (Populus spp.) wood meal was liquefied by phenol in the presence of sulfuric acid as a catalyst. After the liquefied products were cooled, alkaline catalyst and formaldehyde were added. The mixture was kept at (60?) C for 1h and then was heated to (85?) C for 1h. The influence of molar ratio of formaldehyde to phenol (F/P) was investigated. The results showed when the molar ratio of formaldehyde to phenol was over 1.8, the PWF adhesives had high bond quality, bond durability and extremely low aldehydes emissions. 展开更多
关键词 Phenolated wood Phenol formaldehyde (PF) adhesives Bond quality Bond durability aldehyde emission.
下载PDF
Synthesis of Boc-Asp(OBzl)-β-Ala-Asp(OBzl)-N(OMe)Me as a Useful Precursor of Aspartyl Peptide Aldehyde Derivatives
6
作者 邹晓民 赵宏 +2 位作者 傅翌秋 张欣 徐萍 《Journal of Chinese Pharmaceutical Sciences》 CAS 2003年第3期123-126,共4页
Aim To synthesize the tripepide Weinreb amide Boc Asp(OBzl) β Ala Asp(OBzl) N(OMe)Me (7) as a useful precursor of aspartyl peptide aldehyde derivatives; Methods DCC, IBCF method was used for preparation of ... Aim To synthesize the tripepide Weinreb amide Boc Asp(OBzl) β Ala Asp(OBzl) N(OMe)Me (7) as a useful precursor of aspartyl peptide aldehyde derivatives; Methods DCC, IBCF method was used for preparation of Weinreb amide; N hydroxysuccinimide activated ester was used in peptide synthesis; and Boc as N protecting group of amino acid. Results Boc Asp(OBzl) N(OMe)Me (3), Boc β Ala Asp(OBzl) N(OMe)Me (5), and Boc Asp(OBzl) β Ala Asp(OBzl) N(OMe)Me (7) were synthesized successfully. Conclusion An useful precursor of tripeptide aspartyl aldehydes was synthesized. 展开更多
关键词 Weinreb amide aspartyl peptide aldehyde Boc protecting group activated ester
下载PDF
Environment friendly protocol for the synthesis of nitriles from aldehydes 被引量:8
7
作者 M.B.Madhusudana Reddy M.A.Pasha 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第9期1025-1028,共4页
A rapid and eco-friendly one-pot protocol for the synthesis of nitriles has been developed by treating various araldehydes bearing electron withdrawing as well as electron donating groups with hydroxylamine hydrochlor... A rapid and eco-friendly one-pot protocol for the synthesis of nitriles has been developed by treating various araldehydes bearing electron withdrawing as well as electron donating groups with hydroxylamine hydrochloride in the presence of non-toxic,non-corrosive and reusable zinc oxide(ZnO) as the catalyst under solvent-free microwave irradiation.The present approach offers the advantages of a clean reaction,simple methodology,employing readily available catalyst,short reaction duration(〈1 min),high selectivity;and high yield(90-98%). 展开更多
关键词 aldehydeS NITRILES SOLVENT-FREE Microwave irradiation Benign procedure
下载PDF
A Facile Synthesis of β-Cyclodextrin Monoaldehyde 被引量:6
8
作者 Jing HU Cheng Feng YE +2 位作者 Yong De ZHAO Jun Biao CHANG Rui Yun GUO(Lanzhou Institute of Chemical Physics, Chinese Academy of Scences Lanzhou 730000)(Henan Institute of Chemistry, Zhengzhou 450002) 《Chinese Chemical Letters》 SCIE CAS CSCD 1999年第4期273-274,共2页
β -Cyclodextrin (β -CD) was directly oxidized in high yield to the corresponding monoaldehyde by cyclized 2-iodoxybenzoic acid (IBX) in DMSO.
关键词 CYCLODEXTRIN OXIDANT aldehyde
下载PDF
Ferrous methanesulfonate as an efficient and recyclable catalyst for chemoselective synthesis of 1,1-diacetate from aldehydes 被引量:5
9
作者 Min Wang Gui Fu Tian +1 位作者 Zhi Guo Song Heng Jiang 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第9期1034-1038,共5页
Ferrous methanesulfonate catalysing the conversion of aromatic, heteroaromatic, unsaturated, and aliphatic aldehydes to 1,1- diacetates at room temperature under solvent-free condition has been developed. The catalyti... Ferrous methanesulfonate catalysing the conversion of aromatic, heteroaromatic, unsaturated, and aliphatic aldehydes to 1,1- diacetates at room temperature under solvent-free condition has been developed. The catalytic activity of seventeen metal methanesulfonates was compared under the same condition, ferrous methanesufonate proved to be the best. It can be easily recovered and reused for several times without distinct deterioration in catalytic activity. During the competitive protection between a ketone and an aldehyde group with Ac20, 1,1-diacetate formed exclusively with the aldehyde group. 2009 Min Wang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. 展开更多
关键词 1 1-DIACETATE aldehyde CHEMOSELECTIVITY REUSABILITY
下载PDF
β-Cyclodextrin promoted oxidation of aldehydes to carboxylic acids in water 被引量:7
10
作者 Dong Po Shi Hong Bing Ji 《Chinese Chemical Letters》 SCIE CAS CSCD 2009年第2期139-142,共4页
A facile, efficient and substrate-selective oxidation of aldehydes to carboxylic acids with NaClO catalyzed by β-cyclodextrin in water has been developed. A series of aldehydes which could form inclusion complex with... A facile, efficient and substrate-selective oxidation of aldehydes to carboxylic acids with NaClO catalyzed by β-cyclodextrin in water has been developed. A series of aldehydes which could form inclusion complex with β-cyclodextrin (β-CD) were oxidized selectively with excellent yields. 展开更多
关键词 Substrate-selective OXIDATION β-Cyclodextrin (β-CD) aldehydeS
下载PDF
Role of aldehyde dehydrogenase 2 in ischemia reperfusion injury:An update 被引量:6
11
作者 Arnau Panisello-Roselló Alexandre Lopez +6 位作者 Emma Folch-Puy Teresa Carbonell Anabela Rolo Carlos Palmeira René Adam Marc Net Joan Roselló-Catafau 《World Journal of Gastroenterology》 SCIE CAS 2018年第27期2984-2994,共11页
Aldehyde dehydrogenase 2(ALDH2) is best known for its critical detoxifying role in liver alcohol metabolism. However, ALDH2 dysfunction is also involved in a wide range of human pathophysiological situations and is as... Aldehyde dehydrogenase 2(ALDH2) is best known for its critical detoxifying role in liver alcohol metabolism. However, ALDH2 dysfunction is also involved in a wide range of human pathophysiological situations and is associated with complications such as cardiovascular diseases, diabetes mellitus, neurodegenerative diseases and aging. A growing body of research has shown that ALDH2 provides important protection against oxidative stress and the subsequent loading of toxic aldehydes such as 4-hydroxy-2-nonenal and adducts that occur in human diseases, including ischemia reperfusion injury(IRI). There is increasing evidence of its role in IRI pathophysiology in organs such as heart, brain, small intestine and kidney; however, surprisingly few studies have been carried out in the liver, where ALDH2 is found in abundance. This study reviews the role of ALDH2 in modulating the pathways involved in the pathophysiology of IRI associated with oxidative stress, autophagy and apoptosis. Special emphasis is placed on the role of ALDH2 in different organs, on therapeutic "preconditioning" strategies, and on the use of ALDH2 agonists such as Alda-1, which may become a useful therapeutic tool for preventing the deleterious effects of IRI in organ transplantation. 展开更多
关键词 aldehyde DEHYDROGENASE 2 4-hydroxy-2-nonenal autophagy Apoptosis ISCHEMIA REPERFUSION injury PRECONDITIONING
下载PDF
Sulfonated carbon catalyzed oxidation of aldehydes to carboxylic acids by hydrogen peroxide 被引量:4
12
作者 Lipeng Zhou Beibei Dong +5 位作者 Si Tang Hong Ma Chen Chen Jie Xu Xiaomei Yang Jie Xu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2013年第4期659-664,共6页
Sulfonated carbon as a strong and stable solid acid catalyst exhibited excellent catalytic performance in various acid-catalyzed reactions. Here, sulfonated carbon, as catalyst for oxidation reaction, was prepared via... Sulfonated carbon as a strong and stable solid acid catalyst exhibited excellent catalytic performance in various acid-catalyzed reactions. Here, sulfonated carbon, as catalyst for oxidation reaction, was prepared via the carbonization of starch followed by sulfonation with concentrated sulfuric acid. N2 physisorption, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray fluorescence and acid-base titration were used to characterize the obtained materials. The catalytic activity of sulfonated carbon was studied in the oxidation of aldehydes to carboxylic acids using 30 wt% H2O2 as oxidant. This oxidation protocol works well for various aldehydes including aromatic and aliphatic aldehydes. The sulfonated carbon can be recycled for three times without obvious loss of activity. 展开更多
关键词 aldehyde carboxylic acid oxidation hydrogen peroxide sulfonated carbon
下载PDF
An Efficient and Green Procedure for the Preparation of gem-Dicar- boxylates from Aldehydes Catalyzed by Fe_2(SO_4)_3·xH_2O 被引量:6
13
作者 LingJunLI XinYingZHANG GuiShengZHANG 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第5期508-510,共3页
An efficient and environmentally benign conversion of aldehydes into the corresponding gem-dicarboxylates was realized by using hydrated ferric sulfate as a heterogeneous catalyst. In addition to its high efficiency,... An efficient and environmentally benign conversion of aldehydes into the corresponding gem-dicarboxylates was realized by using hydrated ferric sulfate as a heterogeneous catalyst. In addition to its high efficiency, the catalyst can be recovered simply and reused efficiently for at least seven times. 展开更多
关键词 gem-Dicarboxylates hydrated ferric sulfate protection of aldehydes green chemistry.
下载PDF
Ambient Ionic Liquids Used in the Reduction of Aldehydes and Ketones 被引量:3
14
作者 DanQianXU ShuPingLUO BaoYouLIU ZhenYuanXU YinChuSHEN 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第6期643-645,共3页
The sodium borohydride reduction of aldehydes and ketones to corresponding alcohols has been accomplished via the use of ionic liquids. The alcohols are easily obtained with excellent yields and the ionic liquid BMImB... The sodium borohydride reduction of aldehydes and ketones to corresponding alcohols has been accomplished via the use of ionic liquids. The alcohols are easily obtained with excellent yields and the ionic liquid BMImBF4 could be reused. 展开更多
关键词 Ionic liquids sodium borohydride REDUCTION aldehyde ketone.
下载PDF
A simple and efficient method for solvent-free iodination of hydroxylated aromatic aldehydes and ketones using iodine and iodic acid by grinding method 被引量:3
15
作者 Archana Vibhute Shyam Mokle +2 位作者 Khushal Karamunge Vasant Gurav Yeshwant Vibhute 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第8期914-918,共5页
Green,mild and efficient iodination of hydroxylated aromatic aldehydes and ketones using iodine and iodic acid in the solidstate by grinding under solvent-free conditions at room temperature.This method provides sever... Green,mild and efficient iodination of hydroxylated aromatic aldehydes and ketones using iodine and iodic acid in the solidstate by grinding under solvent-free conditions at room temperature.This method provides several advantages such as environmentally friendly,short reaction times,high yields,non-hazardous and simple work-up procedure. 展开更多
关键词 IODINATION Aromatic aldehydes Aromatic ketones GRINDING
下载PDF
A New Brominated Phenylpropylaldehyde and its Dimethyl Acetal from Red Alga Rhodomela confervoides 被引量:4
16
作者 XiaoFAN NianJunXU JianGongSHI 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第10期1045-1047,共3页
A new brominated phenylpropylaldehyde and its dimethyl acetal together with a new natural brominated phenol were isolated from Rhodomela confervoides. Their structrues were elucidated as 2-methyl-3-(2,3-dibromo-4,5-di... A new brominated phenylpropylaldehyde and its dimethyl acetal together with a new natural brominated phenol were isolated from Rhodomela confervoides. Their structrues were elucidated as 2-methyl-3-(2,3-dibromo-4,5-dihydroxyphenyl)propylaldehyde, 2-methyl-3-(2,3-di-bromo-4,5-dihydroxyphenyl) propylaldehyde dimethyl acetal and 3-bromo-4,5-dihydroxybenzoic acid methyl ester by spectroscopic techniques including IR, HRFABMS, ID and 2DNMR experiments. 展开更多
关键词 Red alga RHODOMELACEAE Rhodomela confervoides brominated phenylpropyl- aldehyde derivatives.
下载PDF
Aldehyde dehydrogenase 2 overexpression inhibits neuronal apoptosis after spinal cord ischemia/reperfusion injury 被引量:9
17
作者 Xing-zhen Liu Xin Sun +4 位作者 Kang-ping Shen Wen-jie Jin Zhi-yi Fu Hai-rong Tao Zhi-xing Xu 《Neural Regeneration Research》 SCIE CAS CSCD 2017年第7期1166-1171,共6页
Aldehyde dehydrogenase 2(ALDH2)is an important factor in inhibiting oxidative stress and has been shown to protect against renal ischemia/reperfusion injury.Therefore,we hypothesized that ALDH_2 could reduce spinal ... Aldehyde dehydrogenase 2(ALDH2)is an important factor in inhibiting oxidative stress and has been shown to protect against renal ischemia/reperfusion injury.Therefore,we hypothesized that ALDH_2 could reduce spinal cord ischemia/reperfusion injury.Spinal cord ischemia/reperfusion injury was induced in rats using the modified Zivin's method of clamping the abdominal aorta.After successful model establishment,the agonist group was administered a daily consumption of 2.5%alcohol.At 7 days post-surgery,the Basso,Beattie,and Bresnahan score significantly increased in the agonist group compared with the spinal cord ischemia/reperfusion injury group.ALDH_2expression also significantly increased and the number of apoptotic cells significantly decreased in the agonist group than in the spinal cord ischemia/reperfusion injury group.Correlation analysis revealed that ALDH_2 expression negatively correlated with the percentage of TUNEL-positive cells(r=-0.485,P〈0.01).In summary,increased ALDH_2 expression protected the rat spinal cord against ischemia/reperfusion injury by inhibiting apoptosis. 展开更多
关键词 nerve regeneration spinal cord ischemia/reperfusion injury aldehyde dehydrogenase 2 ALCOHOL apoptosis oxidative stress terminaldeoxynucleotidyl transferase dUTP nick-end labeling neural regeneration
下载PDF
Aerobic oxidation of benzylic aldehydes to acids catalyzed by iron (Ⅲ) meso-tetraphenylporphyrin chloride under ambient conditions 被引量:2
18
作者 Xian Tai Zhou Hong Bing Ji Qiu Lan Yuan Jian Chang Xu Li Xia Pei Le Fu Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2007年第8期926-928,共3页
Highly efficient aerobic oxidation of benzylic aldehydes to the corresponding acids catalyzed by iron (Ⅲ) meso-tetrapbenylporphyrin chloride (Fe(TPP)Cl) under ambient conditions was developed. The catalyst has ... Highly efficient aerobic oxidation of benzylic aldehydes to the corresponding acids catalyzed by iron (Ⅲ) meso-tetrapbenylporphyrin chloride (Fe(TPP)Cl) under ambient conditions was developed. The catalyst has been proved to be an excellent catalyst for the system in the presence of molecular oxygen and isobutryaldehyde at room temperature. 展开更多
关键词 Benzylic aldehydes Oxidation METALLOPORPHYRINS
下载PDF
Association of genetic polymorphisms of aldehyde dehydrogenase-2 with esophageal squamous cell dysplasia 被引量:3
19
作者 Ying-Zhi Zhou Yu-Tao Diao +3 位作者 Hao Li Hui-Qing Li Qing Ma Jia Cui 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第27期3445-3449,共5页
AIM:To demonstrate the possible associations between genetic polymorphisms of aldehyde dehydrogenase-2(ALDH2) and esophageal squamous cell dysplasia(ESCD).METHODS:All participants came from an area of high incidence o... AIM:To demonstrate the possible associations between genetic polymorphisms of aldehyde dehydrogenase-2(ALDH2) and esophageal squamous cell dysplasia(ESCD).METHODS:All participants came from an area of high incidence of esophageal cancer and underwent an endoscopic staining examination;biopsies were taken from a non-staining area of the mucosa and diagnosed by histopathology.Based on the examinations,the subjects were divided into the control group with normal esophageal squamous epithelial cells and the ESCD group.ALDH2 genotypes of 396 cases were determined including 184 ESCD cases and 212 controls.The odds ratio(OR) and 95% confidence intervals(95% CI) were calculated by binary logistic regression models.RESULTS:The distribution of ALDH2 genotypes showed significant differences between the two groups.The adjustment factors were gender and age in the logistic regression models.Compared with 2*2/2*2 genotype,2*1/2*1 genotype was found to be a risk factor for ESCD,and the OR(95% CI) was 4.50(2.21-9.19).There were significant correlations between ALDH2 genotypes and alcohol drinking/smoking/history of esophageal cancer.CONCLUSION:The ALDH2 polymorphism is significantly associated with ESCD. 展开更多
关键词 aldehyde dehydrogenase 2 Polymorphism ALCOHOL SMOKING Esophageal squamous cell dysplasia History of esophageal cancer
下载PDF
Iodine-catalyzed Efficient Synthesis of β-Keto Esters from Aldehydes and Ethyl Diazoacetate Under Solvent-free Conditions 被引量:2
20
作者 WANG Hong-she ZENG Jun-e 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2009年第3期343-346,共4页
An efficient procedure for the synthesis ofβ-keto esters from the reaction of aldehydes and ethyl diazoacetate catalyzed by iodine at room temperature under solvent-free conditions has been described. The catalytic p... An efficient procedure for the synthesis ofβ-keto esters from the reaction of aldehydes and ethyl diazoacetate catalyzed by iodine at room temperature under solvent-free conditions has been described. The catalytic procedure has the advantages of easily available catalyst, mild reaction conditions, high yields, and easy work-up. 展开更多
关键词 IODINE β-Keto ester aldehyde Ethyl diazoacetate
下载PDF
上一页 1 2 196 下一页 到第
使用帮助 返回顶部