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OK, so we've got UV light here, and let's see what we can see, and we lose electrons, if that's what's happening.
好了，我们已经有了紫外光源，让我们来看看能观察到什么，如果那些事情发生了，我们将会失去电子。
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So we had two weeks like about... Three weeks ago, we had like a big heat spell.
所以我们已经有两个星期像这样了……三个星期前，我们有一个持续高温的时期。
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OK, now that I've got that, we could think about what would I want to do with these points?
我也可以像以前那样，对它们进行赋值操作,好，现在我们已经有这些对象了？
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The reason is because we already have a full valence shell for our hydrogen, it doesn't want any more electrons.
原因是因为我们的氢,已经有一个排满的价壳层了，它不再需要多余的电子了。
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Fast forward mid-semester when we talk about cryptography and scrambling information, we need the ability to express ourselves in words, not just numbers, and we have that already.
回想一下期中的时候，我们讨论过密码学,和一些不规则信息,我们需要话语来表达自己，而不是数字，其实我们已经有了。
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So there's lots of things when we look at this model there's lots of things that are missing.
已经有很多因素了,当我们再仔细分析这个模型时,我们发选之前的分析漏掉了很多因素
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OK, but in order to relate turning these physical knob to this quantity here, which we don't have a very good feel for, we've got to have a feel for the slopes.
热量是怎么进一步改变的,但是为了把这些物量同我们，不是很理解的焓联系起来，我们对微分已经有了一定的了解。
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But it sure reflects the fact that we've got fundamental optimism about what can be created.
但是这必定反映出我们已经有了,创造的基本动力。
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So, what we've got here is a source of alpha particles.
我们已经有了一个阿尔法粒子源。
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Probably the best answer is our body is worn out during the day and sleep is necessary to put it back into shape.
最佳的答案应该是,一天下来，我们的身体已经疲惫了,有必要进行睡眠，以恢复状态。
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And we had investors who were coming to us who were already users of the product.
我们有慕名而来的投资者,他们已经是这个产品的用户了。
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The wording is slightly different in all the indentures, but in general, we've settled eight or nine cases; companies sort of agreed and we negotiated a settlement.
在所有的行业里，用语只会有细微的差别，但是总的来说，我们已经解决了八个或九个案子；,公司们似乎也同意我们的观点然后跟我们达成了协议。
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Above and beyond the question of the contents of my life, we have to remember that the mere fact that I'm alive gives my life some value.
除了我的生活内容，我们还要记得,我活着就已经使我的生命有价值了。
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We talk in terms of high pitch and low pitch although we'll fine tune that next time, and then we have this idea of duration or time, which we tend to write out in symbols that move from your left to right.
我们是从高低方面来谈论音高,即使我们将于下次讲解曲调的问题,我们已经有了音符时值或时间的概念,我们倾向于用符号来表示,时间是从你的左边向右边移动的
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There are services now, we don't know yet how to get those stem cells out of cord blood and how to use them for therapies, but it's reasonable to think that we might know about this in 30 years.
现在已经有提供这样的服务了,我们现在还不知道如何从脐带血中,提取这些干细胞并用于治疗,但有理由相信,在未来的30年内我们会知道的
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All right. So jumping in to having established that, yes, particles have wave-like behavior, even though no, hey're not actually photons, we can't use that equation.
好的，我们已经承认了，粒子有波动性，虽然它们不是光子，我们不能用这个方程。
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So if we take a look at nitrogen here, what you'll notice is we have thre available for bonding, - and we already have our lone pair -- one of our orbitals is already filled up.
如果我们看一下氮原子，我们注意到我们可以成3个键，我们已经有一个孤对-,其中的一个轨道已经被填满了。
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We want to make sure we have a full picture of what's going on there.
我们想要确认我们已经对所发生的,有了一个全景图。
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So we've got this argument that Descartes puts forward.
我们已经有了,笛卡尔给出的论证
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/2mv^2 We know that we have one-half mv squared.
我们现在已经有了一个。
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We've got to put six electrons around it.
我们已经有6个电子在这里了。
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When Plato asked himself how could that be, the answer he gave is, well, it's got to be we were previous acquainted with the forms before our life in this world, and that shows that the soul must be something that existed prior to the creation of the body.
柏拉图问自己这究竟是怎么回事，他给出的答案是,我们有生命以前就,已经熟悉了这些形式，这就表明灵魂是在,身体存在之前就已经具有的了。
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A lot more of you chose numbers between 20 and 30, so we're really getting into the meat of the distribution.
有很多人选了20至30之间的数,所以我们已经涉及到分布的问题了
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.. What is it we might say look we've already got the beginning of an answer.
我们或许会说,现在我们已经有答案的开头了。
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And we've had our successes and we certainly have had our challenges.
我们已经获得了成功，当然也有挑战。
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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。
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Because we have paired set in a 2 s orbital, so all we're left essentially is two electrons that are available for bonding.
因为我们有一对，在2s轨道里已经配对了,所以只剩下两个电子可以用来成键。
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And, if I take and I mix the 2s and the 2p's, and by the Hund rule, if I can come up with four, what have I got?
由洪特规则，如果我把2S和2P轨道混合，如果我们能提供4个轨道，我们已经有什么了？
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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
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Let's assume that we have this plasmid cloning vector and we have some pieces of DNA that we would like to put into a plasmid that we would like to make copies of.
假设我们已经有了克隆质粒载体,也有了我们想要将之,整合到质粒上的某些DNA片段,同时也是我们所要复制的DNA片段
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