The better way to think about this is, suppose, rather than starting at the beginning, I just grabbed some spot at random, like this one.

不从数组的头开始遍历，我随即的从数组中抓一个元素，比如这个，我去看看这个元素的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

> David: So this is just the beginning of this new power you now have.

>，大卫：这是你们知道的,新功能的开始。

哈佛公开课 - 计算机科学课程节选