点击下方单词,选择对的这个单词
名词
Mountaineering-(登山)
保险
1. (尤指靠海的)悬崖，峭壁A cliff is a high area of land with a very steep side, especially one next to the sea.
1. a steep high face of rock
e.g. he stood on a high cliff overlooking the towna steep drop
Synonym: dropdrop-off
多通过句子记忆单词，而不是单独死记硬背。
