eight-year-old和eight-year-olds
问题描述：
eight-year-old和eight-year-olds
后一个加了s也对吗?
答
都错了.8 years old 或者8-year old1.old 是形容词 8 years old boy 或 8-years old boy2.olds也有这种说法,比如美国的少女杂志seventeen,就是这样说：Originally,it was geared towards seventeen-year-olds,but si...