他20岁。
He is 20 years old.
He is 20 years of age.
He is 20.
我先生近40岁了。
My husband is getting on for forty.
My husband is going on forty.
他已过30岁。
He is on the wrong/shady side of 30.
He is thirty-odd years of age.
He has turned 30.
age 结合数字概念的一些常用表达法：
这孩子已成年，应该自食其力了。
The boy has come of age and ought to be earning his own living.
The boy has reached an adult age and ought to be earning his own living.
The boy has grown up and ought to be earning his own living.
他因尚未未成年而被拒绝参军。
He was rejected by the army because he was under age.
他不够格参加考试，因为他已超龄。
He was not eligible for the examination because he was over age.
我父母年事已高。
My parents are now advanced in years.
“12岁至20岁之间的男孩”
A. boy between the ages of twelve and twenty
B. boys between the age of twelve and twenty
C. boys between the ages of twelve and twenty
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