eight-year-old和eight years old做选择题时该怎么看
人气：302 ℃ 时间：2019-10-19 17:47:38
解答
eight-year-old,通常用在名词前,作定语
eight years old,通常用在be动词后,作表语
His brother is eight years old.
The eight-year-old boy is his brother.
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