That's simple, and he just started playing the best tennis of his life, just remembering what it's been like for him.

很简单，他就已经,开始打网球生涯中最好的表现，仅仅是记起了比赛的真正含义。

普林斯顿公开课 - 人性课程节选

And I think this is best illustrated by giving you a simple little piece of code.

我认为给你看一段简单的代码,可以很好的说明这个问题。

麻省理工公开课 - 计算机科学及编程导论课程节选