The problem is you've got to make hundreds of millions of doses sometimes in order to have an effect on progress of the disease.

问题是有时候你不得不去制造几亿支疫苗,以便在疾病进展时发挥作用

耶鲁公开课 - 生物医学工程探索课程节选

Yale also has an art collection, which is worth many billions, but we don't count that as part of the endowment because they will never sell it so it doesn't provide income for us.

耶鲁还有一些艺术藏品,价值好几亿美元,但我们并不把它作为基金的一部分,因为学校不会卖掉它们,所以它不会为学校提供任何收入

耶鲁公开课 - 金融市场课程节选