zero hour

n. 零时

例句与用法：

Get your equipment ready, it's coming up to zero hour.

把你们的器材准备好，开始行动的时刻到了。

On the day of the championship game, as the zero hour came near, the players grew nervous.

决赛的那天，比赛将开始时，选手们显得十分紧张。

详细释义：

ph.

行动开始的时间; 关键时刻

Well, it's almost zero hour for the graduation party.

好了, 毕业舞会开始的时刻差不多到了。