OK. The next largest element has to end up in the second last spot. Et cetera. All right, so it's called bubble sort because it does this bubbling up until it gets there.

好的，下一个最大元素又,能跑到倒数第二的位置，等等如此，好的，这称为冒泡排序,因为这个泡泡一直冒到他自己的位置。

麻省理工公开课 - 计算机科学及编程导论课程节选

There's something called "universal life"-- these are all explained in Fabozzi, et al.

还有一种叫做综合性人寿保险,在法博齐的著作中有所提及

耶鲁公开课 - 金融市场课程节选