It implies that this algorithm is calling itself again and again, and again, and on each time the size of the problem I'm trying to sort is being divided by what?

这就说明此算法会一次又一次地调用自己,每次我要排序的问题规模大小,会除以多少呢？

哈佛公开课 - 计算机科学课程节选

So another way saying it again is, when I call the class definition, by default I'm going to look to see is there an init method there, and if there is, I'm going to use it.

当我调用类的定义，默认的是语言要去查看，是不是有个init的方法,如果有的话，程序就会调用它，按照惯例。

麻省理工公开课 - 计算机科学及编程导论课程节选