摘要
大峡谷国家公园:河水雕刻的陆地大峡谷The Grand Canyon National Park waslistedasa World Natural Heritage site(世界自然遗产)in 1979. It is a steepsided canyon carved by the Colorado River in Arizona, in the United States. The Grand Canyon is 446 kilometers long, up to 29 kilometers wide and attains a depth of over 1.6 kilometers.
出处
《初中生》
2019年第Z3期18-19,共2页
