"in the act" in Chinese (Simplified)
正在做某事时当场
Definition
当某人'正在做某事'时，表示他正在那个时刻做某件事，常用于描述某人被抓到做坏事或秘密的事情。
Usage Notes (Chinese (Simplified))
常用在 'caught in the act'（当场抓住）中，表示抓到人正在做（常指坏事或尴尬事）。在中性用法中较少见。
Examples
The police caught him in the act of stealing.
警察在他**正在偷窃时**抓住了他。
She was caught in the act of cheating on the test.
她**正在考试作弊时**被抓了个正着。
The kids were in the act of painting the walls.
孩子们**正在粉刷墙壁**。
Don't even try to deny it—I saw you in the act!
别想否认——我亲眼看到你**正在做那件事**！
He was caught in the act with his hand in the cookie jar.
他被抓到**正在偷饼干**。
I walked in in the act, but quickly pretended I saw nothing.
我走进屋时正好**撞见他们正在做事**，但我很快假装什么也没看到。