这个研究发现在书桌吃午餐是键盘产生细菌的主要起因。

The study found that eating lunch at desks is the main cause of a bug-infested keyboard.

youdao

健康的肺部会产生一种天然的抗生素，通过杀死呼吸道表面的有害细菌来保护肺部不受感染。

Healthy lungs produce a natural antibiotic that protects them from infection by routinely killing harmful bacteria on airway surfaces.

youdao

牙菌斑中的细菌会产生损伤牙龈的毒素。

The bacteria in plaque make poisons that attack the gums.

youdao

We'll learn more about that in a moment, but basically it allows the immune system to distinguish between viral and bacterial pathogens, and respond appropriately depending on the type of pathogen that's there.

我们一会儿会学到不少,但基本上说,这样一来免疫系统,就能够分辨出病毒和细菌病原体,并对相应的病原体类型,产生合适的免疫反应

耶鲁公开课 - 生物医学工程探索课程节选