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And from time to time, particularly in section discussion, you will have occasion to consider the ways in which sometimes in very contradictory ways--over the centuries.
在课堂讨论中，大家需要不断地去考虑,有时候甚至可能是持续几个世纪的完全相反的说法。
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Let's say that you and your co-workers are trying to make a decision about whether to put a plan forward.
假如你和你的同事正在讨论是否需要推进一个计划。
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But it's possible,I suggested, that we really shouldn't focus on the question, what does it take for me to survive?
但我认为，很可能，那根本不是我们应该重视的问题，比起讨论我要存活下去需要什么条件？
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One more thing, I said they're not independent, so we have to talk about the covariance between the returns.
还有，我说过它们不是相互独立的，因此我们还需要讨论两个收益率的协方差。
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If we want to talk about two hydrogen atoms, then we just need to double that, so that's going to be negative 2 6 2 4 kilojoules per mole that we're talking about in terms of a single hydrogen atom.
而要讨论两个氢原子，我们只需要把它乘以二，因此应该是负的，2624，千焦每摩尔,这就是单个的氢原子的情况。
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And of course you will come to your discussion sections in the same state of joyful preparedness.
当然你们也需要参与到讨论中来,并做好充分的课前准备。
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OK. So to do this, we need a little more abstract way of talking about efficiency, and so, the question is, how do we think about efficiency? Typically there's two things we want to measure.
好，为了达到这个目的,我们需要用一种有点，抽象的方式去讨论效率，这衍生出来,一个问题，我们该怎么去认识效率？,主要来说我们有两个要量化的东西。
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Nutrients get broken down into several classes and these are the constituents of food that your body uses for one purpose or another.
营养素这个问题需要花几节课来讨论,它们是食物的组成要素,供给身体吸收,支持身体机能运转
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And this is just an incredibly important area that thermodynamics allows us to speak to.
这是热力学中我们需要讨论的一个,很重要的领域。
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- So in fact, if you want a super long number -- -- let me go ahead and reopen this program -- long you could declare long.
所以事实上，如果你需要一个超级长的数字-,让我们继续重新讨论这个问题-,你可以声明。
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Now I think you may be rather happy to hear that this is the last time --I'm pretty sure that this is the last time - that we will have to discuss, at least at any length, Milton's worries about his unreadiness and his un-preparation.
你们可能会很高兴知道,这是我们最后一次-我对此非常确信,最后一次需要仔细的讨论，弥尔顿对他自身的犹疑和毫无准备的焦虑感。
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We'll think about it in section, how you don't need to vaccinate everybody, but you just need to vaccinate a critical number in order to stop the disease from progressing through a community.
我们在讨论会上讲这个,为什么不需要给每个人都接种,但你只需要让接种人数达到一个临界值,就能阻止这个疾病在社会中传播
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So there's going to be lots of times in this class when we get to play games, we get to have classroom discussions and so on, but there's going to be some times when we have to slow down and do some work, and the next twenty minutes are going to be that.
我们在课上会经常,通过游戏学习博弈,我们还会举行随堂讨论等等,但是我们也需要花费一些时间,来慢慢研究一些问题,接下来的二十多分钟就是这样的
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Ultimately, we need a filter or a lens to talk about then what is ultimately in control.
最终，我们需要一个视窗，一个镜头,来讨论什么是最终的控制者。
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You should be bringing some of the things we talked about when discussing his work, into dialogue with and in conflict with some of the evidence you'll be finding in the text itself.
我们需要回想以前讨论,在上帝与别人的对话中,你可以发现前后矛盾的地方。
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Well, this is the question raised by the skeptic about skepticism or about theory and it's one that we're going to take rather seriously, but we're going to come back to it because there are ways, it seems to me, of keeping this question at arm's length.
这是由对怀疑论或理论持怀疑态度的人提出来的问题,也是我们要认真探讨的，但是我们还会回来继续讨论，因为对我而言，我们需要和这个问题保持一定距离。
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The other thing that I think would come out of the discussions is that diversification is important.
另一个需要讨论的话题是,分散投资很重要
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Remember, we're talking about angular nodes here, so you need to read the question carefully.
要知道，我们这里讨论的是角向节点，大家需要看清题目问的是什么。
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It's going to take more arguments to rule it out.
我们还需要更多讨论,才能否定这个观点
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We need--and there's a lot of talk in Congress right now -we need to think about new regulations that protect individuals, much like the regulations that the HOLC and the FHA made.
现在国会里有很多人都在讨论这个问题,我们需要思考关于,能用来保护个人权益的新法规,像房主贷款公司和联邦住宅管理局的制度
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What I'm going to talk about today is to continue our discussion about what is Biomedical Engineering and go a little bit further and we'll spend about half the class doing that, and then I want to spend the last half of the class talking about some biological structures that are very important and that you might not be familiar with.
今天我们要继续讨论,有关生物医学工程的话题,并且更深入些,这需要花上大约半节课时间,后半节课会讨论,一些非常重要的生物构造,有些你们可能不是太熟悉
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It's also important, once we start talking about molecules, to have a way to represent them, and also to be able to look at a shorthand notation for a certain molecule and understand what the bond is.
还有很重要一点是，一旦我们开始讨论分子，我们需要有一种表示它们的方法，而且能够从中看出,某些分子的简化符号，并得知键的类型。
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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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Rather, you've got to be a wonderful class citizen A to get an A for discussion section.
而是，你需要成为一个很棒的学生,能够在课堂讨论环节得到。
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And that is the last one we're going to describe.
这是我们最后需要讨论的物理量。
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But again for all our purposes, we don't have to go there.
但就我们的目的而言，我们不需要讨论这个。
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I'm going to start with those and then I'll turn, eventually, to another set of possible things that might need explaining, which we might think of as extraordinary, supernatural things.
我将从这里开始,然后转而讨论,另一些,需要给予解释的现象,那些我们可能视之为异乎寻常的,超自然现象
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You need to engage in philosophical discussion.
你需要从事一个哲学讨论。
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You need to come to discussion sections having thought about the lectures, having done the readings, having thought about the questions that they raise, and you need to come to discussion section then prepared to discuss this week's set of issues.
你需要去参与讨论给出自己的想法，去读阅读材料，去想他们提出的问题，并且你需要去讨论,然后准备去讨论这个星期的话题。
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So that means that we don't have to worry about things like wave functions when we're talking about Lewis structures, but because they're so simple to use and because they so often predict the electron configuration of molecules accurately, we end up using them all the time in chemistry, so it's very valuable to know how to draw them correctly and to know how to work with them.
因此这也就意味着我们在讨论路易斯结构的时候,不需要担心波函数之类的东西，但是由于路易斯结构不仅简单易用,而且用它来预测分子的电子排布,经常可以得到非常精确的结果，结果我们在化学中一直都在用它，因此知道如何正确地画出并运用,路易斯结构是非常有价值的。
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