to put the knife in somebody
01
背后捅刀, 狠狠背叛某人
to emotionally harm someone through a significant act of betrayal or hurtful actions
贬义
习语
非正式
例子
She really stuck the knife in when she sided with his rivals.
她站到他对手那边时,真是在他背后捅了一刀。
背后捅刀, 狠狠背叛某人
她站到他对手那边时,真是在他背后捅了一刀。