go overboard
 

to do far more than is necessary.

做得遠遠超出必要范圍

What do you think causes the police to go overboard, to use excessive violence?

你認為是什么原因導致警察行為過激，濫用暴力?

Wine is not a bad thing. But going overboard means it will eventually ruin one's life.

酒不是什么壞東西,但如果喝過頭,它最終會毀掉一個人的生活。

He didn't need to buy her everything in the store! He went completely overboard.

他不用把店里的東西都買給她吧。他也太夸張了!