As soon as they had let the fowls out, in the early summer mornings, they had to take their guns and keep guard; and then again as soon as evening began to mellow, they must go once more.

在初夏的早晨，他们一放完鸡，就得拿起枪来站岗；等到天色渐渐柔和下来，他们又得走了。

youdao

We must keep our resolve. And we must never let down our guard.

我们不能骄傲自满，我们要坚定决心，我们绝不能放松警惕。

youdao

Generally, these attacks have been relegated to the category of annoyance, but don't let that be a reason to lower your guard, because there are plenty of other things to keep you up at night.

通常，我们认为这是一种无聊的攻击，但您一定不要因此放松警惕，因为它造成的许多问题会让您半夜睡不着觉。

youdao

She says people must keep up their guard against the virus, which is unpredictable and could change into a far more dangerous form.

VOA: standard.2009.12.29

The Guard is helping keep people out of Cameron until it's safe to return.

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It was challenged by a security guard who wanted to keep his gun in his home.

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Another one taxes businesses on the generators they keep to guard against power cuts.

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