Third thing to notice is, there's a flow of control. The order which these things are going to happen.

第三件事情就是,我有一个控制流,这些事情有个要做的先后顺序。

麻省理工公开课 - 计算机科学及编程导论课程节选

I still get nervous before every single lecture, which is actually a good thing. But it's managable.

每次上课前，我仍会感觉紧张，其实这是件好事，它可以控制。

哈佛公开课 - 幸福课课程节选