问题描述：
10 years old 与10-year-old的区别
同题.
e.g.Although Mr.Li is a ____ man,he is in good health.
A.10 years old B.10-year-old
此题选B
同题.
e.g.Although Mr.Li is a ____ man,he is in good health.
A.10 years old B.10-year-old
此题选B
问题解答：
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