你必须带上护目镜和防护面具，以保护你不被烟熏。

You must wear goggles and a mask that will protect you against the fumes.

《柯林斯英汉双解大词典》

请在门上装把锁以保护你的财产。

Put a lock on your door to safeguard your property.

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上台阶的时候无需用力进行，以保护你的膝盖不要受伤。

Step gently to protect your knees.

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Then they test you to make sure that you have adequate protection, and some people need an additional shot after that.

然后医生会检测以确定你已获得了保护,有些人在测试完后需要再打一针

耶鲁公开课 - 生物医学工程探索课程节选

The answer is "Yes you would", the question is "Would that response, even though it's much faster, be fast enough to protect you from the initial exposure to tetanus that you got?"

是的,你的身体会马上做出应答,问题是 即便免疫应答十分迅速,但是否足够迅速,以保护你不被破伤风杆菌感染

耶鲁公开课 - 生物医学工程探索课程节选