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You say, "Whoa, what is this?" Kant makes a distinction between the purposive and the purposeful. What is the distinction?
我咧个去，这货说的是啥？，其实康德将,“合目的性“和“目的性“做了比较，什么比较呢？
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What do you think is the biggest difference between living here and in Romania?
你觉得住在这里跟在罗马尼亚最大的不同是什么？
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Another part of the problem of learning language is you have to figure out what the boundaries are between the words.
学习语言的另一个问题是,你必须得确定单词之间的界线是什么
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So again, this is an anti-bonding orbital, and what you see is that there is now less electron density between the two nuclei than there was when you had non-bonding.
同样的，这是反键轨道，你们看到当你有反键轨道的时候,两个原子核中间的电子密度更小了。
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What do you think the difference is between the accents here and in Australia?
你觉得澳大利亚的口音和这里的口音有什么区别？
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And the difference between those is what you could measure.
这其中的差值就是,我们测量的值。
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I think for the moment it should be plain to you that this is a good way of understanding what the difference between a useful preconception and a useless preconception brought to bear on an interpretative act might consist in.
我想大家现在都能够,从这个例子中明白,解读中有益先见,和无益先见,之间的区别了。
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What extracellular matrix you have in any particular tissue is there because there's a balance between it being produced by one kind of cell and digested by another, and you're in this sort of state of dynamic equilibrium.
特定组织中,细胞外基质的多少,取决于一个,分泌与降解的平衡,这是一种动态的平衡关系
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We'll talk about what is the right time and how do you find the right time, how do you find the balance between thinking about painful emotions and when does it slide to rumination, which is not always helpful.
我们会谈到什么是合适的时候,如何找到合适的时候，以及如何在,思考痛苦情绪,和让痛苦情绪滑入沉思到平衡，沉思并非总有帮助。
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What do you think is the big difference between working here and in Brazil?
你觉得在这里工作和在巴西最大的区别是什么？
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What would you say is the biggest difference between undergraduate and graduate students?
本科生和研究生最大的区别你觉得是什么？
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What do you think is the difference between San Francisco and your hometown?
你认为旧金山和你的家乡有什么不同？
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What is it about the Greeks between the years that I mentioned to you that deserves the attention of people in the twenty-first century?
是什么使得久远的古希腊,会值得21世纪的人们,去关注和研究呢
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So, between 1650 and 1750, and this is right out of what you're reading, the rulers of continental Europe, of the biggest states extended their power.
所以从1650年到1750年这段时期,这正好与你们阅读的内容一致,欧陆上,统治者们扩张了他们的势力
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What I'm inviting you to think about is which one, if you had to choose between these two gruesome scenarios, which one would you rather save?
这里我要请大家思考的是，哪一个，如果你必须在这两个残忍情境中作出抉择，你会救哪一个？
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What do you think is the main difference between Germany and the U.S.?
你觉得德国和美国主要的区别是什么？
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What do you think is the difference between Americans and Europeans?
你认为美国人和欧洲人的区别是什么？
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One thing that I want to mention that is really important is once you have double bonds, what happens between those two atoms in the molecule is they can no longer rotate in relation to each other.
我要提醒你们的非常重要的一点事,一旦有了双键，分子中的两个原子,就不能相对旋转了。
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What this is is learning the relationships between what you do and how successful or unsuccessful they are, learning what works and what doesn't.
操作性条件作用,是在学习行为与成功,或失败程度之间的关系，学习什么行为起作用,什么行为不起作用。
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They tell us for instance that there is a difference between recognizing something in the sense that you could name it, and knowing what it is.
例如它们会让我们明白,在识别某物叫什么,与知道某物是什么之间,还是有所不同的
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that's one way to think about it, and there's also another way, and this is the way that your book presents it. If you, in fact, have two of the same atom right next to each other, let's say you have a crystal, or let's say you're talking about a metal, what you can do is just look at the distance between the two nuclei, and split that in 1/2, and take the atomic radius that way.
这只是一种定义的思路，另外还有其它方法，也就是你们课本上的方法，如果你，事实上，有两个相同的原子彼此靠在一起，比如说你有一个晶体，或者说你讨论的是一个金属，你所要做的就是,看看这两个原子核之间的距离，然后将距离除以二，就得到了这个原子的半径。
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So, it's up on this screen here now, so we'll work on the other one. If you can identify which of these statements is correct based on what you know about the relationship between frequency and wavelength and also just looking at the waves.
它们之间的关系,现在在大屏幕上了,鉴于你们知道,频率和波长的关系,看到这些波你们来,判断下这些说法是否正确。
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So that's just a little bit of a check for yourself, and it should make sense because what you're doing is you're calculating the difference between energy levels, so you just need to flip around which you put first to end up with a positive number here, and that's a little bit of a check that you can do what yourself.
所以你们总要确保括号，离得这项是正的，这是你们自己,可以做的检查，这事很有道理的，因为你们做的是计算能量差,所以你需要调整顺序来保证一个正数，这是你们自己可以做的检查。
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So this is the 1 s star, sigma 1 s star orbital, and what you have in the center here is a node, right in the center between the two nuclei.
这是1s星，sigma1s星轨道，中间这个是节点，它在两个原子核中间。
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So if we're comparing the difference between these 2 now, what you'll notice is that in nitrogen we have all half-filled 2 p orbitals, and now, once we move into oxygen, we actually have to add 1 more electron into 1 of the 2 p orbitals.
那么如果我们来比较下它们两个有什么不同，你会发现氮的，2，p，轨道,都是半满的，现在，我们继续看一下氧，我们不得不在其中一个，2，p，轨道上,再放上一个电子。
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