And that person who really studied it systematically, and is given credit for developing the first vaccine, is a Scottish physician named Edward Jenner.

而那个系统研究疫苗,并被誉为发明了第一支疫苗的人,叫爱德华?詹纳,是苏格兰的一名医生

耶鲁公开课 - 生物医学工程探索课程节选

In my final slide is a picture of the first indexed bond; this is issued by the State of Massachusetts I actually own this bond.

最后一张幻灯片是,第一支物价指数债券的照片,这是麻省州政府发行的,其实我收藏了这张债券

耶鲁公开课 - 金融市场课程节选