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If you have a white wall, that's when we did Zen meditation, it's easier if you're just facing a wall.
如果家中有面空墙，我们可以进行坐禅，面对空墙会相对容易。
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We can do it later when we have more money.
等我们有足够的资金再做也不迟。
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Anybody have any questions on that, because when we voted, the majority of the class thought it was reversible Yes.
上节课我们投票时，多数人都认为它是一个可逆过程，而现在大家应该都知道了,它其实是不可逆过程，有问题吗？
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So even though we see a nodal plane down the center, I just want to really point out that it's only when we have a nodal plane in the internuclear or the bond axis that we're calling that a pi orbital.
虽然在中间有个节面，我想要指出的是,只有节面在核间轴,或者键轴上时,我们才叫它π轨道。
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So much of our life again if it is all in control, what happens when something doesn't go the way we have planned.
如果我们的生命总是风平浪静，一旦事情与我们计划的不同,我们该怎么办。
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But we have no problems when it comes to things like breeds of dogs with stereotypes.
我们并不介意,用刻板印象来评判不同品种的狗。
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We didn't have a feasible business model, let's put it this way, because when we started, the business model is to provide the backend search technology to the portal companies in China.
或者说没有一个，可行的商业模式，因为公司成立初期的商业模式，是给门户网站公司,提供后台搜索技术。
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So in the fourth stanza we as readers have no idea where we are or when it is the speaker of the poem imagines himself to be speaking, and it's at this point that something quite strange happens.
所以作为读者，对第四段我们不知道,自己在哪，诗的代言者在哪,什么时候想说话，而且就是在这时非常奇怪的事情发生了。
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Now, I want to ask a question that we're going to need to think about, the two of you sitting up front here, when I was asking you how you responded to it. Can we have a moral response to this novel?
现在，我想要问你们一个我们将要思考的问题，就你们俩吧，坐在前面的，当我问你们如何回应,我们可以对这部小说有一个道德反思吗？
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Well, that's right and of course we don't have any good reason to follow Plato when he says it must be the case that the soul exsited prior to birth.
这是正确的,而且我们没什么好的理由,跟随柏拉图的观点,即，灵魂存在于出生之前。
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We didn't even have income tax until 1913 when the Supreme Court allowed it, so it was zero, then it went up to 90%-- or actually it was 94% at the peak--and it came down to 15%.
直到1913年最高法院允许征收的时候,我们才开始征收所得税,开始税率是零,而后飙升到90%,然后它最高达到94%再降到15%
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When we find people challenging it, I think they have the bulk of time and human experience on their side when they say you guys got it wrong.
当我们发现有人挑战这一定律时,我只能说他们完全是在白费力气,当他们说道 你们这些家伙是错的
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Well, for the answer to that we have to go back to ancient Greek music theory, and when you read about this--it's really turgid stuff-- but believe it or not, I teach a course on this at the graduate level.
这个,要回答那个问题,恐怕要追溯到古希腊的音乐理论,每次读这些都会云山雾罩的,不管你信不信,我曾在研究生中开过这个课程
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So, that's going to be important later when we get to bonding, but just take note of it now, we have two nodes, or we have two lobes, excuse me, each with a separate phase.
这等到我们之后讲到成键时是非常重要的，现在先要记住，我们有两个节点，不好意思，是两个叶瓣，每个都是不同的相位。
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We have, for example, bomb drills just in case something happens people think it's right When thing happens once and you move on, go back to life, just as something goes wrong and then you move on.
例如，我们有，炸弹演习以防发生什么事情,人们认为这是应该的,发生了一件事，你要继续正常的生活，正如某事出了点问题，然后你继续前行。
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It's just how much heat is involved when we change the temperature. Now, the products have some heat capacity associated with them right, it takes a certain amount of heat if we make their temperature change, to either put it in or take it away, depending on which direction the temperature is changing.
问题就是当我们改变温度时,有多少热量发生了转移,生成物具有一定的热容,如果我们改变,它们的温度，就要输入或,提取一定的热量,这取决于温度改变的方向。
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So, it turns out that we have zero nodes that we're dealing with when we're talking about a 3 d orbital.
所以结果是,３ｄ轨道没有节点。
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It's all similar in that it reminds us of the connection that we have, when we really are feeling fully present, and not mindless, and unaware of everything around us, and our place and our connection.
大同小异，都提醒我们,我们之间的联系，我们真切地感受到当下，而不是漫不经心，不觉周围事物，不知我们之所在和我们的联系。
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And then of course we could have further investigate whether-- when you reassemble a body, is it more like the watch case or ? is it more like the tower case?
接着我们才可以,更深入地去研究-,当你重组肉体时，情况是更接近手表这个案例,还是搭积木塔这个案例？
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It will make more sense when we can show you one where it does have that area.
当我给你们展示有这种地方,的情形时会更容易理解。
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But actually there is a little bit of an energy cost into doubling up into a single orbital, because, of course, it takes energy when you create more electron repulsion, that's not something we want to do, but we have to do it here, and it turns out that that effect predominates over, again, the energy that we gain by increasing the atomic number by one.
但实际上，在一个轨道上放两个电子,确实会亏损一点能量，因为，当你加入更多电子，引起更大的排斥能,这显然会消耗能量，这不是我们想要做的，但是在这种情况下我们不得不做，结果这一影响，超过了增加一个,原子序数所得到的能量。
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We're going to get to more complicated atoms eventually where we're going to have more than one electron in it, but when we're talking about a single electron atom, we know that the binding energy is equal to the negative of the Rydberg constant over n squared, so it's only depends on n.
我们以后会讲到，更加复杂的情况,那时候,不只有一个原子，但当我们讲，单个原子的时候，我们知道结合能，等于,负的Rydberg常数,除以n平方，所以它仅仅由n决定的。
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There's not two bonds, that's one pi bond, and the reason is because it's 2 p orbitals coming together, and remember p orbitals have electron density above and below the axis, so when they come together, it kind of looks like one bonds, but essentially what we have here is one pi bond.
这不是两个键，这是一个π键，因为这是两个2p轨道组合而成的，记住p轨道在键轴之上,和键轴之下都有电子密度，当它们靠近时，这看着很像两个键，但本质上它是一个π键。
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