I can't believe this is happening.

我真不敢相信这事就这么发生了。

I can't 实战 - SpeakingMax英语口语达人

swap I'm going to keep track of a little variable called swap, it's initially true, and as long as it's true, I'm going to keep going, but inside of the loop I'm going to set it to false, and only if I do a swap will I set it to true.

我打算跟踪一个小的变量称为,初始值为真，只要它是真的,算法就会继续，但是在循环里,我打算把他设为假,除非交换发生，就把它设为真。

麻省理工公开课 - 计算机科学及编程导论课程节选

If it does work out, something extraordinary may happen.

但如果你真有了灵感，奇迹就会发生。

普林斯顿公开课 - 人性课程节选