go overboard
to do far more than is necessary.
做得远远超出必要范围
What do you think causes the police to go overboard, to use excessive violence?
你认为是什么原因导致警察行为过激，滥用暴力?
Wine is not a bad thing. But going overboard means it will eventually ruin one's life.
酒不是什么坏东西,但如果喝过头,它最终会毁掉一个人的生活。
He didn't need to buy her everything in the store! He went completely overboard.
他不用把店里的东西都买给她吧。他也太夸张了!
