axe to grind
存有私心或动机
口语·表示有私心或不满动机
英文释义
to have a personal motive or selfish reason for doing or promoting something
例句
He has an axe to grind with the company after being fired unfairly.
典故来源
源自19世纪美国，指有人带着斧头找磨刀石，比喻怀有个人目的或怨恨。