"Our effort here in writing this letter is just urging caution because we're hoping that with the new administration, we will have an administration that will lend itself more to diplomacy and working through other means rather than always military confrontation,".

VOA: standard.2009.03.17

It turns out that we can do that now because we have an enzyme called reverse transcriptase, which is able to take single stranded messenger RNA and make DNA out of it.

我们现在已经可以做到这一点了,因为我们有了反转录酶,反转录酶可以用,单链的mRNA创造出DNA

耶鲁公开课 - 生物医学工程探索课程节选

I was writing an essay because we also have to take Humanities classes, not just technical classes.

我在写一篇论文，因为我们也要上人文课程，不光是技术课程。

沟通很重要 - SpeakingMax英语口语达人

So here we have 3 minus l equals 0, because it's an s orbital, minus 1, so we have two radial nodes here.

这里我们有３减去ｌ等于０,因为这是ｓ轨道，减去１,我们有两个径向节点。

麻省理工公开课 - 化学原理课程节选

Now this moment is striking in part because we had no idea - how could we possibly have had an idea?

如今这一刻又浮现在脑海中，部分是因为我们并不知道,等等，我们如何能够知道？

耶鲁公开课 - 弥尔顿课程节选

Because the U.S. is an arguably very successful country, so we have, potentially, a bias in--it's called a selection bias.

因为毫无疑问美国是个很成功的国家,因此我们的潜意识中,存在选择性偏差

耶鲁公开课 - 金融市场课程节选

Because we don't really consider Western Literature to have an actual closed canon of authoritative texts.

因为我们并不认为西方文学,具有权威文本的固定标准。

耶鲁公开课 - 新约课程节选

Now when I asked you to start keeping the dietary records, I asked you not necessarily to change your food intake because we wanted you to have an accurate record of what you typically ate.

当我让你自己保留饮食记录,我告诉你没有必要改自己的食物摄入记录,因为我们想获得准确数据,关于你一般吃什么

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So this is a Nash Equilibrium, but okay we know what it is in jargon, and we know, we kind of knew that was going to be an important point, because most of you have taken Economics courses before and you know that whenever lines cross in Economics it's important, right?

这就是纳什均衡了,是个术语,而且这个知识点是相当重要的,因为你们大多数人之前都学过经济学,而且都知道经济学的交点都很重要

耶鲁公开课 - 博弈论课程节选

We want to do that because we have too many variables here. We've already got dV p we'll get rid of p as an additional variable and replace it with V which is already in here.

我们之所以要那么做,是因为这儿有太多变量了,我们已经有了dV，我们要把,作为额外的变量消去，用已存在的V代换它。

麻省理工公开课 - 热力学与动力学课程节选

We are going to have to stop doing that because we cannot find an individual electron.

我们正要停止那么做,因为无法发现一个独立电子。

麻省理工公开课 - 固态化学导论课程节选

Right, because when we think of an energy diagram, that lowest spot there is going to have the lowest value of the binding energy or the most negative value of binding.

对因为当我们考虑,一个能量图时那里最低的点,是具有最低的结合能,或者最不活跃的结合能。

麻省理工公开课 - 化学原理课程节选

And what I want to point out that we just figured out for molecular orbital theory, is that o 2 is a biradical, because remember, the definition of a radical is when we have an unpaired electron.

我要指出的是,我们刚利用分子轨道理论，指导了O2是二价自由基，因为记住，自由基的定义是,有个未配对的电子。

麻省理工公开课 - 化学原理课程节选

So we have 4 plus 5, but we're actually not done yet, because it's c n minus, so if we have minus, we actually have an extra electron in our molecule.

我们有四个加上五个，但是我们实际上还没做完，因为这是个负离子，所以如果我们有这个负号，那么我们的分子实际上还有一个额外的电子。

麻省理工公开课 - 化学原理课程节选

That's why we don't have an arrow here, because we could go back, this way too.

这就是为什么我们这里没有用箭头的原因，因为我们可以过渡回去，像这样。

麻省理工公开课 - 热力学与动力学课程节选

They told him that if earnings go up-- we try to keep a target payout ratio-- but if earnings suddenly shoot up, we're not going to increase our dividends right away because that would set too high an expectation and we don't want to have to cut it.

他们告诉他,如果收益提高,我们会努力维持既定的股利发放率,但如果收益大涨,我们不会马上提高股利,因为这样会导致过高的期望,我们也不想降低股利

耶鲁公开课 - 金融市场课程节选

putting all those things together, if you looked at this question again we'd get 100% on it, 0 9 that our only option here is 0. 9, and that it's not the negative, it's the positive version, because we're talking about how much energy we have to put into the system in order to eject an electron.

把这些放在一起，你们再看一下题目,大家100%都能选对，我们唯一的选择就是这个，它不是负数，它是正的，因为我们说的，是要,把电子激发出来,需要提供的能量。

麻省理工公开课 - 化学原理课程节选

So in terms of the carbon hydrogen bond, it's a sigma bond, - because we define it -- any time we are bonding to an atom, we have to keep redefining our bond axis to whatever two atoms we're talking about.

对于碳氢键，它是sigma键，因为我们定义它-,任何时候我们有原子成键，我们要重新定义键轴方向,为我们所讨论的两个原子方向。

麻省理工公开课 - 化学原理课程节选

So if we go to the ground state, what you see is we're at that lowest energy level, and we only have one possibility for an orbital, because when n equals 1, that's all we can do.

如果我们在基态上，你可以看到，我们在能量最低的态上，只有一种，可能的轨道，因为n等于1，只有这种可能。

麻省理工公开课 - 化学原理课程节选