Why don't I just keep track on each pass through the algorithm whether I have done any swaps?

我为什么不仅仅跟踪算法的,每一遍来看看我做了哪些交换呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

I expect most everybody could pass all of the questions but it's just to keep you on track and keep you going.

我希望大家在所有的问题上都能及格,但这只是想让大家不要掉队,督促一下

耶鲁公开课 - 心理学导论课程节选