One way to think about it, if we want to use a classical analogy, which often helps to give us an idea of what's going on, is the spin of an electron, we can picture it rotating on its own axis.

如果我们用一个，经典的比喻来考虑它的话，这经常会帮助我们建立起一些概念，就是我们可以把电子的，自旋想象是它绕着轴自转。

麻省理工公开课 - 化学原理课程节选

If you think about the American idea as an example of the modern way of thinking about these things, the notion is we can't do anything.

如果你以美国式理念作为,一种现代思维方式去,思考这些内容的话,就会觉得无法可施

耶鲁公开课 - 古希腊历史简介课程节选

Think of an interesting testable idea about either dreams or laughter.

想出一个可测试的有趣想法,关于梦境也行，关于笑也行。

耶鲁公开课 - 心理学导论课程节选