点击下方单词,选择对的这个单词
名词
1. 山谷;(尤指)溪谷A valley is a low stretch of land between hills, especially one that has a river flowing through it.
1. a long depression in the surface of the land that usually contains a river
Synonym: vale
多通过句子记忆单词,而不是单独死记硬背。