may is six-year-olds这样说对吗?
may is six-year-olds这样说对吗?
He is two—year—olds对吗?
six-year-old与six-year-olds的区别
five-six-year olds是什么意思与five six-year olds的区别是什么
six years old 和 six- year- old 和 six- year- olds的区别
the six-year-olds是复数还是单数呀
-----olds are on the lake A.Five-six-year B.Five-six years C
Declan is like most other 15-year-olds.
may i look at your ticket?这样说对吗?
fifteen-year-olds是什么意思?
seven-year-olds
the house is building 这样说对吗?