We decrement so to speak the variable and then where will we go next in terms of the flow control, the flow of this program.

可以这么说，我们递减这个变量,然后按照控制流，即程序流进入到下一语句。

哈佛公开课 - 计算机科学课程节选

Let's go into the third version of this and then start doing something with these constructs.

让我们进入这个程序的第三版,开始用这些概念来写点东西。

哈佛公开课 - 计算机科学课程节选