You might have thought before we started talking about molecular orbital theory that non-bonding was the opposite of bonding, it's not, anti-bonding is the opposite of bonding, and anti-bonding is not non-bonding.

你也许在我们讨论分子轨道之前,就想过非成键时成键的反面，它不是，反键才是成键的反面，反键不是非成键。

麻省理工公开课 - 化学原理课程节选

So Bohr was validated in very, very strong measure, but there were also some contrary data.

所以说波尔理论得到了强有力的证实，但其实也存在一些反面数据。

麻省理工公开课 - 固态化学导论课程节选

I think the more we think about it, the more we realize that we only know what it is if we know the system that it belongs to, which is to say, all of the things related to it which it is not. Right?

你们越仔细想这一点，就越明白，我们只有知道事物所属的符号系统,才能认识事物，所有事物都是和同一符号系统中的反面相关的？

耶鲁公开课 - 文学理论导论课程节选

In approach number one, you simply lay out the various positions, pro and con, and the professor strives to remain neutral; sort of not tip his hand about what he holds.

方法一，你们简单的列出不同的观点，正面和反面，老师争取保持中立;,不表明他支持哪边。

耶鲁公开课 - 死亡课程节选

For example, the experiment could be tossing a coin, I will call the outcome heads the number one, and I'll call the outcome tails the number zero, so I've just defined a random variable.

比方说,抛硬币的试验,我将正面向上的结果对应数字1,反面向上的结果对应数字0,这样我就定义了一个随机变量

耶鲁公开课 - 金融市场课程节选

If it were all the things that it's not, or if it were identical to all the things that somehow or another it's not, then I would be in a very difficult situation because I wouldn't have any means of knowing it in particular.

如果一件事就是它自身的反面，或者和其他的事物没有区分之处,那么我们，就很难认识它,因为我们没有办法认识它。

耶鲁公开课 - 文学理论导论课程节选