| 词组 | zero hour |
| 释义 | zero hourn.1The exact time when an attack or other military action is supposed to start. 进攻发动时刻；军事行动开始的时刻。◆ Zero hour for the bombers to take off was midnight.轰炸机起飞的时刻是午夜。2The time when an important decision or change is supposed to come; the time for a dangerous action. 决定性时刻；危险行动开始的时刻。◆ It was zero hour and the doctor began the operation on the man.决定性的时刻到了，医生们开始给那个人做手术。 |
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