thirteen years old与thirteen-year-old的区别

thirteen years old 与 thirteen -year-old的区别 thirteen years old与thirteen-year-old的区别 I this year thirteen years old a thirteen-year-old boy的中文翻译 My sister is thirteen years old.(提问thirteen years old) 适当形式：You __were__(be) thirteen years old last year. They are ( ) students.A.thirteen years old B.thirteen-year o year-old与years old的区别 She is thirteen years old.对thirteen years 提问 I am thirteen years old ,too的同义句 I am thirteen years old this year.(用two years ago代替this year a thirteen-year-old boy=什么?