If I'm basically just squeezing jello, that is, I'm trying to make the problem simpler, but the combination turns out to be really complex, I've not gained anything.

如果我只是简单的挤压果汁，那么我是在尝试着让问题变得简单，但是合并过程就真的比较复杂,我得不到任何东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

the artist doesn't get compensated and it really reduces the ability of the mechanism

艺术家得不到赔偿，这就真的降低了这个体制的能力，

不能非法下载 - SpeakingMax英语口语达人

If you could get to zero degrees Kelvin, you'd get perfect efficiency, 0 but you can't get to zero degrees Kelvin, you can't. Even if you have an infinite amount of resources, you can't get there.

如果能达到，你就能获得完美的效率，但你得不到，得不到，即使你有无穷多的资源,你也做不到。

麻省理工公开课 - 热力学与动力学课程节选

And, in fact, once you teach an animal something, if you stop doing the teaching the response goes away and this is known as extinction.

事实上，条件反射形成以后，如果得不到强化,条件反应就会逐渐消失,这就是消退。

耶鲁公开课 - 心理学导论课程节选