If the bonding energy is very strongly negative, thermal energy isn't great enough to disrupt those bonds and allow those bonds to be broken and then have fluidity.

如果键能非常强，热能并不足以,打破这些化学键,破坏这些化学键,并使它们液化。

麻省理工公开课 - 固态化学导论课程节选

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

That's why all these arguments that we all get into these days about third-party political candidates what do we really need in our political culture, what would break apart the stagnation of our two-party system, if that's what people want or put more directly, will Michael Bloomberg run or not?

这就是我们今天为何面对这些争论,关于第三方党派的候选人,也就是我们的政治文化中究竟需要什么,什么能打破我们两党制停滞不前的现状呢,如果这是人民所愿,或者更直接的说,迈克尔.布隆伯格的做法行得通吗

耶鲁公开课 - 美国内战与重建课程节选