axe to grind
存有私心或動機
口語·表示有私心或不滿動機
英文釋義
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.
典故來源
源自19世紀美國,指有人帶著斧頭找磨刀石,比喻懷有個人目的或怨恨。