I woke up at the crack of dawn.我一早就醒了
the crack of dawn破晓，一大早
其它例句：
1.The marchers jumped off at the crack of dawn.
行军队伍在破晓时出发了。
2.We have to get up at the crack of dawn.
我们必须一大清早就起床。
I woke up at the crack of dawn.我一早就醒了
the crack of dawn破晓，一大早
其它例句：
1.The marchers jumped off at the crack of dawn.
行军队伍在破晓时出发了。
2.We have to get up at the crack of dawn.
我们必须一大清早就起床。
