what is the different between 7 years old and 7 year old

2007-01-02 3:56 am
what is the different between "7 years old" and "7 year old"

回答 (1)

2007-01-02 4:01 am
✔ 最佳答案
Seven year old is an adjective, while 7 years old is a noun .
For example, I have a seven-year-old sister.
我有一個7 歲既妹妹.
My sister is seven years old
我妹妹得7 歲


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