three-year-old 和 three years old 有什么区别

three-year-old 和 three years old 有什么区别 three -year-old 和 three years old有什么区别? three years old 与 three-year-old 的区别 three-year-old 与 three years old区别 three-year-old triplet 的意思 a three－year－old boy,可以说成a three years old many　thanks! At last the three-year-old boy was____(救） three-year-old这类词算哪个语法点同上 中间连线的 形容词是怎么回事 如three-year--old 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? four-year-old和four year old有什么不同 11 year old和11-year-old有什么区别 in the 1927, the plane wasa. three-meter-high b.three meters higha为什么不对?急!an eight-year-old boy不是和a同理的吗？ his brother is [ ] [ ] [ ] than heA.three years olderc.three year olderD.three older yearsB.old three years The woman has a ____child A.threeThe woman has a ____childA.three-years-old Bthree-year-old C.three years-old Dthree-year'sold year这个词说三岁是“three years old”如果用year表示“三个月”应该怎么写? Her sister is ____ than her.A three years older B three year old C three years old D three years elder说明理由 years old 和year-old的区别和用法