of age

成年, 达到法定年龄

例句与用法：

Her careful make-up hid the signs of age beneath.

她的精心化妆掩饰了脂粉下面岁月刻下的痕迹。

At 20 years of age the will reigns; at 30 the wit; at 40 the judgement.

20岁我们按意愿做事; 30岁我们凭智慧做事; 40岁我们靠判断做事。

His son is not yet of age.

他的儿子还未成年。

Since you are already of age now, you should solve the problems by yourself.

你已经成年了，这些问题要自己解决。

详细释义：

成年

Is your younger sister of age yet?

你妹妹成年了吗?