And the nice thing is that there's a shared behavior there. Just as I can have tuples as an ordered collection of things, strings behave as an ordered collection of things.

共享的行为，就像元组是有序的元素序列,字符串也是有序的元素序列,因此我可以对字符串做同样的操作,我可以把它们连结起来。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now what I'd like to do, every time I find a divisor I'd like to gather it together. So I'm going to create a tuple of one element, the value of i.

那么我就会去创建只包含一个元素的元组,也就是这个除数了,然后，啊，很好,这里是加法重载的一个很糟糕的应用。

麻省理工公开课 - 计算机科学及编程导论课程节选

You eliminate them the same way you eliminate them.

你们按照同样的方法消元就行

耶鲁公开课 - 基础物理课程节选