All are keeping a sharp look-out in front, but none suspects that the danger may be creeping up from behind.

所有的人都密切地注视着前面，但没有人怀疑危险可能正从后面悄悄逼近。

youdao

You take the front line when there is danger.

但在危险时，你要站在前线。

youdao

As long as they are there, we do not feel any difficulties, because they are always in front of our shelter, preventing us from difficulties and danger.

只要有他们在，我们感觉不到任何的困难，因为他们总在我们的前方为我们遮风挡雨，把我们挡在困难和危险的后面。

youdao

You take the front line when there is danger.

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Dr Dixon, who heads the NHS Alliance - an organisation which represents doctors, nurses and managers on the front line - said the danger with the current wording of the rules was "that it seems to put a duty upon the commissioner to go for competition with all contracts that are made".

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Military officers may not be on the front lines but their lives are often in danger and they also have a job that may be more stressful than worrying for their own well-being: they are responsible for the lives of those under their command.

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