安全装置保护工人使免受伤害。

The safety devices defend workers from danger/harm.

youdao

例如，我们都会同意如果我们能够通过撒谎而使某人不至受伤，那么使人免受伤害的义务就比说实话的义务更重要。

For example, most of us would agree that, if we can save someone from serious injury by lying, then we have more of an obligation to save someone from injury than we do to tell the truth.

youdao

受到惊吓的你会耗尽全力以至于耗费大量的时间和能量使自己免受伤害！

Such fear is often so all-consuming that you spend a great deal of your time and energy avoiding the thing that frightenes you.

youdao

Our immune system's function is to keep us healthy in the face of an environment where there are lots of things that could potentially harm us.

我们免疫系统的功能就是保持自身健康,在面对危机四伏的环境时,使我们免受伤害

耶鲁公开课 - 生物医学工程探索课程节选

Well, you could think about the cell wall of a bacterium as its skeleton, it's what protects it from mechanical forces that are out in the world.

你可能认为细菌的细胞壁,就像骨骼一样,使其免受,外界机械力的伤害

耶鲁公开课 - 生物医学工程探索课程节选