I'm thinking about a problem, I'm going to show you an example in a second, first thing I'm going to do is say, what is the thing that's going to change every time I run through the same set of code?

我要解决一个问题，我马上会让大家看一个例子，第一件我要做的事情就是,弄明白每次运行同样的指令集时,每次都会改变的东西是什么？

麻省理工公开课 - 计算机科学及编程导论课程节选

Along the way I have some tests, and depending on the value of that test, I may change where I am in that sequence of instructions.

我会按顺序进行一些测试，按照测试的数值，我会改变之指令序列中,我的位置。

麻省理工公开课 - 计算机科学及编程导论课程节选

It's moving through a sequence of instructions, occasionally changing where we are as we move around.

它经过指令序列，在，我们移动的时候随机改变我们原本所处的位置。

麻省理工公开课 - 计算机科学及编程导论课程节选