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

The economic health of this country in the long run will be dependent on the economic health of the treasury, of our fiscal situation and we can't get that under control until we get the entitlement crisis under control.

而且这个国家的长期经济健康,会依赖于,国库的经济健康和财政形势的健康,只有控制好津贴的危机,才能控制住这些经济的问题。

普林斯顿公开课 - 国际座谈会课程节选