请问是six-year-old还是six years old还是six-years-old?(这个空签名有个a )
请问是six-year-old还是six years old还是six-years-old?(这个空签名有个a )
six years old 和 six- year- old 和 six- year- olds的区别
six-year-old boy和six years old boy 有什么区别?一样么?为什么?
six-year-old和six years old用法有什么区别?
Mary is six years old(对six years old提问
My little brother is ____.A.a six-years old boy B.a six-year
six years old与six-year-old有什麽区别拜托了各位
The boy six years old this year.哪里错了
为什么Six Years Old.中Year要加S呢?
My little sister is only____.A.six years B .six years old C.
Ann's brother is only six years old中对only six years old进行提问
请问:是a four years old boy?还是a four year old boy?正确