做优秀传统文化的传承者

A leaf dropped into the water and changed its flavor(风味).Then,tea was born.China is known for its long history of tea culture.Nowadays,Chinese people drink various types of tea every day because they believe that tea is very beneficial(有益的)to their health.

孩子反正要换牙,乳牙掉了真可以不用管吗

现在,很多孩子存在缺失乳牙的现象,都没有得到及时、有效的修复。家长普遍认为,孩子乳牙早晚是要替换的,可以不用补。其实,这种看法是非常片面的。龋齿是乳牙缺失的主要原因乳牙早失比较常见的原因就是龋齿。儿童喜欢吃甜食喝饮料,因此,特别容易发生龋齿。若不注重口腔卫生,龋坏不断发展,龋坏的乳牙就不能继续治疗,为了保护恒牙的健康发育,患牙就得提前拔除了。此外,还有一些其他疾病也会导致牙齿先天缺失和乳牙的脱落。