The soldiers were warned to remain hidden and not to expose themselves.

士兵们受到警告要隐藏好，不能暴露自己。

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They travel on to the liver and remain hidden away, multiplying rapidly, until there are tens of thousands of them.

这些寄生虫游走到肝脏，隐藏起来，迅速滋长，直至生出成千上万个个体。

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That's the greatest beauty I find in eels: the idea of a creature whose very life beginnings can remain hidden from humans.

这是我在鳗鱼身上发现的最伟大的美丽之处：能始终向人类隐瞒其生命起源秘密的一种生物的信念。

youdao

And for the first few weeks, these antibodies are successful, eliminating all but a few viruses that remain hidden away from the body's surveillance systems.

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But his real motivations remain hidden, even probably to himself.

FORBES: Digital Rules

The researchers said in those with severe disease, the body was responding as if it was attacking a virus, enabling the bacteria to remain hidden and replicate unchallenged within cells.

BBC: 'Wrong' immune response aids TB