让我们在天亮前起身。

Let's start out before dawn.

youdao

凯瑟琳在天亮前偷偷出去。

Catherine stole out before break of day.

youdao

虽然这些角面堡在天亮前没有修建完成，但仍然给进攻者添加了一道障碍。

These were not finished before daylight but they did present the attackers with a further line of obstacles.

youdao

First,they don't meet in the daytime; they meet either early before light,at dawn, or after dark,at night.

首先，他们不在白天聚会;,要么在天亮前的黎明，要么在天黑后的夜晚。

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