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come of age到了成年
例句：He will come of age a week from today.
他再过一个星期就成年了。
2.You know, what we want to do now is show you what happens to a private once the training wraps up.
wrap up完成
例句：They wrapped up an agreement on Friday.
他们于周五签完协议。
The whole thing has been wrapped up.
整个事情已成定局。
3.But on this day, it's hard for all of them to stay on top of their game.
on top of their game竞技状态良好
