You have to imagine a time when Switzerland wasn't extremely wealthy.

可以想象那时的瑞士并不富裕

耶鲁公开课 - 欧洲文明课程节选

One way to mark time is to imagine it carries a clock as it moves, and put markers every second.

标记时间的一种方法是,想像它带着时钟运动,并且每秒做一次标记

耶鲁公开课 - 基础物理课程节选

This is why he's continually placing the imaginative origin of the poem back to the very dawn of time, perhaps even back before if you can imagine such a time -- before the very dawn of time.

这就是为什么弥尔顿总是试图把想象中的这首诗的起源,推至时间开始的时候，甚至更早,-如果你们能想象这样一个时间--在时间开始之前。

耶鲁公开课 - 弥尔顿课程节选

Just to see that in a very simple example, again, we don't use such a complicated example as the one we looked at last time, you could imagine a game, a really trivial coordination game, which looked like this .

不妨再举一个例子,我们就不找上一讲那么复杂的案例了,看一下这个简单的协调博弈,如

耶鲁公开课 - 博弈论课程节选