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

I'm going to have 2 still, and then this S1 is going to become a 1, and this S1 here is going to become a plus B S2, everyone happy with that?

还保留,S1求导后是1,这里的S1会变成B*S2,大家都会吧

耶鲁公开课 - 博弈论课程节选