when push comes to shove
当情况变得紧要时，当无法避免时
口语·描述紧要关头
英文释义
when a situation becomes difficult or when action needs to be taken
例句
When push comes to shove, I'll just take the bus instead of walking.
典故来源
源自橄榄球或摔跤运动，推搡升级为猛推，比喻关键时刻。