请问是six-year-old还是six years old还是six-years-old?(这个空签名有个a )
问题描述：
请问是six-year-old还是six years old还是six-years-old?(这个空签名有个a )
答
six-year-old和six years old都对，最后一个是错误的。
答
six-year-old six years old为正确表达方式,另一个从语法上来说不对，
six years old,是一般形式
six-year-old 整个作为形容词，里面的year不能+s
类似于这种中间用-相连的形式的都不用加S
如果但从这道题目来说应该为six-year-old，在定冠词a 后面应该是跟名词，修饰名词的自然就是形容词了。
望楼主能够采纳，谢谢
答
如果这个空前面有个a,那就是填six-year-old,它相当于一个形容词,六岁大的.如
He is a six-year-old boy.他是一个六岁大的男孩.