请问X-year-old和X years old 的区分和具体用法?还有 X－year－olds
问题描述：
请问X-year-old和X years old 的区分和具体用法?
还有 X－year－olds
答
X-year-old
例子:She is a ten-year-old girl.
X years old
例子:She is a ten years old girl.
不存在X－year－olds
答
old后不可加 s
有 -的 year后无s
没有-的 year后有s
意义完全相同
答
X-year-old
例子:She is an 8-year-old girl.
X years old
例子:She is 8 years old .
X-year-old可以算是一个形容词词组 其中注意要有短横 而且year不能加s.
应该是不存在X－year－olds这种结构的
答
x-year-old 作定语，如 a 5-year-old boy
x years old 作表语，如 He/The boy is 5 years old.