fifteen-year-olds是什么意思?
fifteen-year-olds是什么意思?
fifteen-year-olds和a fifteen-year-old boy
fifteen-year-olds看做单数还是复数?
five-six-year olds是什么意思与five six-year olds的区别是什么
英语翻译原文:A group of fifteen-year-olds at Sunshine School are h
Fifteen-year-olds shouldn't be allowed to drink.(改为同义句)____
seven-year-olds
three-year-olds汉语意思
year olds还是years old?
sixteen year olds 还是sixteen year old?
Sixteen-year-olds should be allowed drive.
six-year-old与six-year-olds的区别