英语问题：请问twenty-year-old和twenty years old的区别

英语问题：请问twenty-year-old和twenty years old的区别

twenty-year-old “二十岁的”，此词组相当于一个形容词用，只能作前置定语，即只能放在被修饰的词的前面。如 He's a twenty-year-old singer.

twenty y矗功避嘉篆黄遍萎拨联ears old “二十岁”，此词组只能作后置定语或表语
如 He is singer of twenty years old. (后置定语)
He is twenty years old. （表语）

希望我的回答能够帮到你，望采纳！
祝你学习进步，天天快乐。O(∩_∩)O

twenty-year-old用在名词前修饰，相当于“二十岁的（某某）”。 twenty years old用在动词后，相当于“（是）二十岁”。

twenty-year-old是一个复合形容词 twenty years是形容词old的状语，表示“多大” She is a 矗功避嘉篆黄遍萎拨联twenty-year-old mother. She is twenty years old.