So if you think about the way something like, say, Mapquest works, and last week in recitation you looked at the fact that shortest path is exponential.

所以如果你想想电子地图，还有上周学的列举法,你就会发现一般最简单的方法,都是指数递增的。

麻省理工公开课 - 计算机科学及编程导论课程节选

Or in another example, maybe you met somebody at a social gathering last week.

在另一种情况中，假设上周你在一个社交聚会上见到了某人。

I'm frustrated 课堂 - SpeakingMax英语口语达人

Now, you know, because we talked about cell culture already, that a great--that we talked about last week, manufacturing of cells.

你知道,因为我们已经讲过细胞培养,我们上周讲过的,细胞的大规模制造

耶鲁公开课 - 生物医学工程探索课程节选

> Well, you talked last week about a lot of these.

>，好的，你上周讲了很多这个。

哈佛公开课 - 计算机科学课程节选

So if I post it on Wednesday to cover the material for that week, then you should attempt it as quickly as possible because I'm going to assume you have done the problems when you come for the next few lectures.

如果我周三布置了关于该周课堂内容的作业,你们应该尽快着手去做,因为当你下周来上新课时,我会假设大家都已经把上周题目做完了

耶鲁公开课 - 基础物理课程节选

I saw you on TV last week, you looked fantastic.

上周我在电视上见到你了，你看起来棒极了。

When 实战 - SpeakingMax英语口语达人