crunch time
关键时刻，决定胜负的时刻
口语·表示关键时刻或压力期
英文释义
the period of time just before a deadline or an important event, when pressure and stress are at their highest; a critical or decisive moment
例句
It's crunch time for the team as the deadline is only two days away.
典故来源
源自体育比赛关键时刻，crunch指压力巨大，后用于任何压力最大的最后阶段。