当我经过的时候，我看见你在做那件事。

I saw you doing that when I went past.

youdao

过去两年多里，当我经过癌症治疗中心时，一些人教我呼吸的重要性。

Over the last 2 years when I was going through cancer treatment, some people taught me the importance of breathing.

youdao

他说：“当我经过湖边时，那边有一对加拿大鹅，那只母鹅坐在小岛上的蛋上面。”

He said: "I went past the lake where there is a pair of Canadian geese." The female was sitting on her eggs on an island.

youdao

And obviously, when I get to something whose square is equal to x, I've got the answer I want, and I kick it out.

大于x的时候，我已经经过了,想要的答案了，很明显,当我得到一个数的平方等于x的时候。

麻省理工公开课 - 计算机科学及编程导论课程节选