have a dog in the fight
US /hæv ə dɔɡ ɪn ðə faɪt/
UK /hæv ə dɔɡ ɪn ðə faɪt/

1.
有切身利益, 有自己的盘算
to have a personal interest or stake in a situation or outcome
:
•
Of course he cares about the election results; he has a dog in the fight because his business will be directly affected.
他当然关心选举结果;他有切身利益,因为他的生意将直接受到影响。
•
She claimed to be neutral, but everyone knew she had a dog in the fight.
她声称中立,但每个人都知道她有切身利益。