You've all been immunized for Hepatitis B, would you be happy to hear that that's where your Hepatitis B vaccine came from?

你们都对乙型肝炎具有免疫力了,如果你知道你的乙型肝炎疫苗,是从何而来的话,你还会高兴的起来吗

耶鲁公开课 - 生物医学工程探索课程节选

Roughly speaking, about 1200 B.C., we hear of general attacks that are going on around the Mediterranean against the various civilizations of which we know.

大致说来,大概在公元前一千二百年,爆发了以地中海周围,我们所知的各种文明为攻击对象的,全面战争

耶鲁公开课 - 古希腊历史简介课程节选