sixteen-year-olds跟sixteen-year-old有什么区别?

问题描述:

sixteen-year-olds跟sixteen-year-old有什么区别?
保证两种都是对的,书上都出现过,意思不一样,不一样在哪?

诚如楼主所说,两者都对.区别如下:1)sixteen-year-olds只有一种词性.名词.因为后面加了s.同类用法只要改前面的数字.例句Eighteen-year-olds qualify to vote .年满十八岁者有选举权.Even five-year-olds do not wan...