So if I try to rotate my 2 atoms, you see that I have to break that pi bond, because they need to be lined up so that the electron density can overlap.

如果我要试着转动两个原子，你会看到我必须要打破一个π键，因为他们需要连接起来,让那些电子能够重叠。

麻省理工公开课 - 化学原理课程节选

I would just say that in my experience you really have to want to do this, I would definitely encourage people to be aware of the breath and try to be mindful, but remember too it's very difficult for us to leave the negative feelings.

我只想说,根据个人经验，确实要真心想这么做，我肯定会鼓励大家,留意自己的气息，并尝试着留心察觉，但让我们抛下负面情绪,也非常困难。

普林斯顿公开课 - 人性课程节选

If you have questions about this I hope that you've already taken advantage of the teaching fellows or come up after class, I'd be happy to try to answer your questions now if you have time as well.

如果你对这些内容有疑问,我希望你能从助教那里获得帮助,或者课后来找我,我现在非常乐意回答你的问题,如果你们正好也有空的话

耶鲁公开课 - 生物医学工程探索课程节选