> Student: Are you serious?

学生：真的要撕吗？

哈佛公开课 - 计算机科学课程节选

You turned so serious when the corpse was carried past us; are you afraid of death?

尸体被运送经过我们时，你是那么严肃;,你害怕死亡吗？

耶鲁公开课 - 死亡课程节选

Let's assume that you've won the lottery, and have serious money that you foolishly wish to invest in the stock market There are two basic strategies to choose from in investing.

让我们假设你赢了彩票，然后又一大笔钱,而你很傻的想要投资到股票中去,有两个投资策略,可以选择。

麻省理工公开课 - 计算机科学及编程导论课程节选