Now, why is the time less on second exposure?

为什么再次免疫花费的时间少呢?

耶鲁公开课 - 生物医学工程探索课程节选

Whoever wrote this remark seems to be under the impression that the point of being at Yale is to spend $40,000 a year of your parents' money and get away with learning as little as possible.

无论谁写的这条评论都被带怀有这种印象,那就是每年花费你父母四万美金在耶鲁上,学并尽可能少的学到知识。

耶鲁公开课 - 死亡课程节选