问题描述: We'll have four weeks' holiday.中为何不用week's或weeks,而用 weeks'? 1个回答 分类:综合 2014-10-23 问题解答: 我来补答 four weeks表示四周,而'是代表’s,因为前边week已经加了s,所以省略了s,你说的那两种都是不正确的 展开全文阅读