It's very expensive when you take into account not only the direct costs, but also the costs that you pay advisors to help you make these decisions.

非常昂贵,不仅需要考虑直接成本,还要考虑,支付给帮你做决策的顾问们的费用

耶鲁公开课 - 金融市场课程节选

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