8-year-old 和 8 years old 的区别

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8-year-old 和 8 years old 的区别

参考答案:

8-year-old 有-这个连字符year单数.不要复数8 years old 漫游连字符,years是复数的,8 years old 一般作表语,前面经常接联系动词(be之类的)8-year-old (注意是year,不是years)一般作定语,相当于形容词