What does that mean? Let me draw two analogies.

那意味着什么，我为大家做两个类比。

哈佛公开课 - 幸福课课程节选

And that's somewhat inconvenient because we're working with wave functions, but it's a reality that comes out of quantum mechanics often, which is that we're describing a world that is so much different from the world that we observe on a day-to-day basis, that we're not always going to be able to make those one-to-one analogies.

这对于研究氢原子，很不方便,但这就是事实,而且在量子力学中经常会出现这种事实,那就是我们要描述的世界，和我们日常所看到的世界,之间的差别是如此之大,以至于我们不能，做出一一对应的类比,但幸运的是我们不用管。

麻省理工公开课 - 化学原理课程节选

The two analogies we use " was strengthening our immune system or stronger "psychological engine" that has the capacity to endure more not just from the negative to zero, but also from the zero to the positive.

我们使用的两个类比,是加强我们的免役系统或加强“心理引擎“,获得更强大的忍受能力,不只是从负到零，还要从零到正。

哈佛公开课 - 幸福课课程节选

And one of the best analogies you can think of is the oil rich nations of the world in post-World War Two, in the post-World War Two era, whether it's Saudi Arabia, Iraq and Iran, the Emirates, or Venezuela, name--today Russia.

做个非常恰当的类比,你们可以把棉花想象成,二战后时期的石油,想想沙特阿拉伯,伊拉克,伊朗,阿联酋,委内瑞拉,和今天的俄罗斯吧

耶鲁公开课 - 美国内战与重建课程节选