We have never really nailed this down, I don't think.

我们还没解决这个问题

耶鲁公开课 - 聆听音乐课程节选

and because... you know, never before have we seen this level of interconnectedness

这种水平的互联性是我们之前从未想过的，

关于全球化 - SpeakingMax英语口语达人

We can never just have it there before us or, as I say, if we can--if we can--it's a very, very difficult act of concentration.

我们永远不能只面对着它，或者，要我来说，如果我们可以的话，那将需要高度集中注意力，这是很难的。

耶鲁公开课 - 文学理论导论课程节选

Usually we say it never goes down, we don't have it going down, cross that out.

一般我们说它永远不会走低,从曲线上来说,它不会下降

耶鲁公开课 - 金融市场课程节选

We prove things in mathematics that have never been proven before or we find new ways to prove these theorems or what have you and we can be creative.

我们用数学去证明从未被证明过的事物,我们探寻新的方法去证明那些定理,或其他诸如此类,总之,我们具有创造力

耶鲁公开课 - 死亡课程节选

So musical notation: the first grid pattern in Western culture-- but it does lock us in in interesting ways that we may-- you perhaps have never considered-- compared to how music is made in other cultures.

因此音乐记谱法,是西方文化中最早的网格图示,但这也限制了我们以某种有趣的方式,你们也许从来没有想过的方式创作,相对其他文化中音乐创作的过程而言

耶鲁公开课 - 聆听音乐课程节选

So we'll start to look at molecules and we'll see if we take two atoms and we fill in our molecular orbital and it turns out that they have more anti-bonding orbitals than bonding, that's -- a diatomic molecule we'll never see.

我们要看开始看一看分子,并且我们会发现如果我们,取两个原子并且填入分子轨道,结果是它们的反键轨道,比成键轨道更多，这就是-一个我们不会看到的二元子分子。

麻省理工公开课 - 化学原理课程节选

I mean those may have been the days of the cultural wars, but some would say that those wars never ended and we were still in them, in some places even in a sense more extreme than originally in the sense that the stakes seem very high.

那段时间确实是文化论战的年份，但也有一些人会说文化论战没有结束,现在还在继续，在某些地方,甚至比文化论战期间还要极端,因为利益关系更大了。

普林斯顿公开课 - 人性课程节选

It's never perfect and we can't figure out yet a way to make it perfect and we still have small investors who are defrauded, who are treated badly.

事无完美,至今还没有完美的办法,仍然有许多小投资者,遭受欺诈,成为受害者

耶鲁公开课 - 金融市场课程节选

So, even if we were to agree with the pessimists that it would be better never to have been born at all, as the old joke goes, show me one person in a thousand who's so lucky, right?

所以，即使我们要同意悲观主义者的观点,根本不出生更好，就像老笑话讲的那样，给我千里挑一找到一个走运的人？

耶鲁公开课 - 死亡课程节选

So, that means we have to devise ways of sharing with people that we've never met, that we don't care about--I mean, maybe we care about everybody, but we don't have any particular emotional ties to them-- and they're very different people.

那意味着我们必须设计一些方法,使我们与素未谋面的，并不亲近的人们一同分摊风险，也许我们非常博爱，但未必对所有人都会怀有特殊情感-,分摊者应该是与我们非常不同的人。

耶鲁公开课 - 金融市场课程节选

We will never have a case where ionization energy is negative.

我们绝不会见到一个,电离能是负值的情况。

麻省理工公开课 - 化学原理课程节选

So if we say that l is just talking about our kinetic energy part, our rotational kinetic energy, and we know that electrons have potential energy, then it makes sense that l, in fact, can never go higher than n.

如果我们说，l仅仅是,描述动能项，我们的旋转动能，我们知道，电子有势能，所以可以理解，l不能比n高。

麻省理工公开课 - 化学原理课程节选