If you're a doctor and you've got a patient who's running away from you at the speed of light, you'll know what to do.

如果你是个医生,你的一个病人以光速逃跑了,你就知道该怎么办了

耶鲁公开课 - 基础物理课程节选

If the doctor goes in and yanks the organs from the healthy patient who came in for a checkup to save five lives, there would be adverse effects in the long run.

如果那位医生,偷摘走那位来体检的,健康人的器官,去挽救另外五人，这事从长远来看，会有负面影响。

耶鲁公开课 - 公正课程节选

In addition, this is just the cost of the vaccine, not the cost of the doctor or nurse who injects it into, you so you have to figure that cost in as well.

另外,这个仅是疫苗本身的成本,还没算上医生或者护士的成本,所以你还得同时考虑这些成本

耶鲁公开课 - 生物医学工程探索课程节选

But it's only an effective vaccine in the context where you have people who can go to the doctor's office, or to an urgent care, some kind of medical facility, three times, reliably, at a specified period of time.

但为了保证接种效果,人们必须亲自去诊疗室,或者在急诊室里,使用一些医学设施辅助接种,还需要接种三次,它只在一段时间内有效

耶鲁公开课 - 生物医学工程探索课程节选