足够的睡眠来使免疫系统健康！

Get enough sleep. Keep your immune system healthy!

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因为这些传染病在免疫系统健康的人群中是很少见的。

These infections are unusual in people with a healthy immune system.

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以往研究表明硒在保持免疫系统健康方面发挥重要作用，并且艾滋病患者表现出微量元素缺乏。

Previous research has suggested that selenium plays a role in keeping the immune system healthy, and that HIV patients tend to show a depletion in the trace element.

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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

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The immune system is stronger, so it also helps in terms of physical health.

免疫系统更强，所以对身体健康也有帮助。

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Fungi which don't often cause infections in people with healthy immune systems but can under some circumstances, and can be tremendous problems in patients that have weakened immune systems.

真菌在免疫系统健康的情况下通常,不引起感染,但在某些情况下也会感染,那就成了极大的问题,在免疫系统脆弱的病人体内

耶鲁公开课 - 生物医学工程探索课程节选