问题描述: how many of you have been to the usa?起什么作用 1个回答 分类:英语 2014-10-14 问题解答: 我来补答 of 意思:“...的,属于”.作用:表示该词前后的从属关系.how many of you 你们中有多少人.One of the legs of the table is broken.桌子的一条腿坏了.Mr.Brown is a friend of mine.布朗先生是我的朋友.Some of us like playing football 展开全文阅读