As darkness fell, Clinton gave orders for his men to rest.

夜幕降临时，克林顿下命令让自己的人休息。

《柯林斯英汉双解大词典》

As darkness fell outside, they sat down to eat at long tables.

当外面黑暗降临时，他们坐在长条桌子旁吃饭。

《柯林斯英汉双解大词典》

But as darkness fell their hopes were fading fast.

但是直到天黑了，他们的希望变得更渺茫了。

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As darkness fell, studio lights were set up so that the rescue work could continue.

CNN: Rescuers search for life in rubble of Nairobi bomb attack

The lights dimmed and dimmed some more, and darkness fell upon the Big Room.

NPR: 'Grapes Of Wrath' And The Politics of Book Burning

That search - which was called off as darkness fell on Saturday - included an RAF Lossiemouth helicopter.

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