问题描述: sixteen year old、sixteen-year-olds、sixteen-year-old有什么区别 1个回答 分类:英语 2014-11-04 问题解答: 我来补答 先看例子:1.He is sixteen years old.2.They are sixteen --year---olds.3.He is a sixteen--year---old boy.例2 中 sixteen --year---olds是名词 例3中sixteen--year---old 是定语 展开全文阅读