英语翻译18-year-old看成一个单词吗？

英语翻译18-year-old看成一个单词吗？ 英语翻译She is a 8-year-old girl还是She is an 8-year-old girl. 英语翻译He has a five-year-old son如果正确,还有别的 翻译方法么,写一个就好. 一个18岁男孩 用英语怎么说（要用连字符）请问是 an eighteen-year-old boy 还是 a eighteen-year-old 为什么? 英语翻译The old bridge （）（）（）last year 单选I think___shouldnot be allowed to drive.A.sixteen-year-old B.sixteen-year-olds 选什么 单选I think___shouldnot be allowed to drive.A.sixteen-year-old B.sixteen-year-olds 为什么选B, year old,year-old,years old,years-old的区别 The 18-year-old boy is his son【划线提问,划线18-year-old】why nine-year-old算一个单词还是三个单词 一个十二岁的女孩翻译这样可以吗?A 12-year old girl或者A 12-year-old girl 一个三岁大的孩子：a three-year old baby a three-year-old baby 到底应该是哪个呢? 英语单选：Do you know he was a _____ body A ten years old B ten-years-old C ten-year-old eight-year-old和eight-year-olds后一个加了s也对吗? her five-year-old 10 year old age 他是一个十岁的男孩怎么翻译?years old ,year old 在什么时候不加s? 60-year-olds为什么Old会加上一个S?60-year-olds为什么Old会加上一个S,它和60 years old有什么区别?