in action
01
大显身手时, 展示本领时
(of a person) doing something one is trained for or is very good at
习语
例子
You should see that chef in action.
你真该看看那位厨师大显身手。
02
实际运行中, 实际使用时
(of a thing) serving its purpose or operating in a way that it is designed or programmed
习语
例子
The new security system is impressive in action.
新的安保系统在实际运行中令人印象深刻。
