thirteen years old与thirteen-year-old的区别
问题描述：
thirteen years old与thirteen-year-old的区别
答
he is thirteen year old哪里错了
答
没有区别 都表示13岁 但不能记混
答
是有区别的!
thirteen years old相当于一个短语
thirteen-year-old相当于一个形容词
例如：the boy is thirteen years old
he is a thirteen-year-old boy
明白了吗?还不明白再来找我·····
答
没有