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All right, so I'm burning some energy, I'm burning some fuel to do this somehow, to get that work to happen.
而这个路径需要先加热再冷却，这样，我需要能量来源，比如燃料，来完成做功。
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I think that, you know, the country at the moment needs a strong leadership
我认为，这个国家现在需要一个强大的领导者。
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And the main one is, I get to just decide, how do I want to use this, and call it.
但是这真的会有一些好处，最重要的一点是，我需要决定，我要如何来使用这个方法，以及如何来调用它。
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One. And so I put 1 into this box so that's the correction I needed to make from before.
，因此我把1放在这个盒子里,那么这里我需要做的改动。
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And for that I need to invoke the names of three giants.
为了做到这个,我需要提到三位伟人的名字。
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So it's by no means do I mean to suggest, "Oh, here's everything you need to know about the subject."
所以我绝不是在暗示,关于这个话题,你需要知道的就这么多
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We need to choose the one or two that are really going to drive and sustain the network and the service and the product As an editor, I am effectively just the chief editor of the company.
我需要选择那一件或两件,会真的带动这个网络，服务，产品,让它们持续发展的事情,拿编辑打比方，我就是公司有效率的总编。
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And I'm not expecting you to do that calculation here, because it involves the calculator, among maybe a piece of paper as well.
我并不期望你们去做这个计算,因为它需要一个计算器，也许还需要一张纸。
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What is it you have to know about this object that was thrown, I claim, is the initial location of the object and the initial velocity.
关于这个物体,我们需要了解什么,我要强调的,就是这个物体的初位置和初速度
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I think this is a case where they need help, not deserve it, but I think, again, if you had a certain level of requirements to meet sustenance, you're gonna need help, like, if you don't have food or a place to live, that's a case of need.
我认为这个例子中，他们需要帮助，但并不他们是应得的，不过我认为，如果你在一定程度上需要他人救助以维持生计，你就需要别人的帮助，比如，如果你没东西吃，没地方住，这才是需要帮助。
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What exactly that purgation will entail and why Milton's voice needs to be purged at all I think these questions are really the subject of the entire rest of the poem.
这种净化是很有必要的,弥尔顿的语言为什么需要被完全净化,我认为这个问题才是所有剩余诗歌,真正的主题。
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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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If you feel exposed without a text book, you really have to have a textbook, John actually I'm going to reuse that word, John, at least suggest it, on the course website.
如果你觉得没有教科书就缺乏安全感的话，那你真的需要一个了，其实我应该重新使用这个词儿，至少是建议，你能在课程网站上找到。
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And by that, I mean, not how much memory do I need to store the size of the input, it's really how much internal memory do I use up as I go through the computation?
需要占用多少内存,我意思并不是，存储输入需要多少内存,而是当我完成这个？
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So that way you can have an idea if, oh, I do really understand this but I'm a little bit slow, maybe I need to practice this one type of problem a little bit longer so I can get up to speed so I'm going to be able to get through all this in terms of the exam time.
这样你就可以知道，假设，噢，我真的懂这个，但是我的速度有点慢，或许我需要在练习这个类型的题目上,多花一点时间,这样我就可以提高自己的速度,可以全部做完,在考试规定的时间内。
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So I would choose something that have a wave lines off You wouldn't measure the dimension of a human hair with a yardstick, so I need something on this order.
所以我会选些东西,你将不会用一个码尺去量,人的头发有多大，所以我需要一些这个级数上的东西。
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For this trick I'll need my magic wand of dereferencing.
对于这个技巧，我将需要一个魔杖。
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I want to abstract that. And the abstraction you see, right here. I'm going to highlight it for a second so you can see it. I want you to look at it on the handout as well.
我需要进行抽象,这个抽象就在这儿,我把它强调给你们看看,我希望你也能看看讲义里的这部分内容。
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And so I'm going to go back to this idea of a class, and let's build the first of these, and that is shown right here on this piece of your handout.
你把半径加到一起,你不会把角度加到一起，你需要再笛卡尔坐标下，进行这个操作,那么我这里在讲的就是。
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What do I need for those writers to all interact together? I need a specification.
这个比方的意义什么呢？,我需要怎么做才能使。
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I'm given an integer that's a perfect square, and I want to write a little piece of code that's going to find the square root of it. All right so I'm cheating a little, I know it's a perfect square, somebody's given it to me, we'll come back in a second to generalizing it, so what would the steps be that I'd use to walk through it?
完美平方数的整数，我想写一段代码来求这个数的平方根,好，我这儿有点儿作弊了,我知道这是一个完美的平方数了,他们给我的，我们后面会讲怎么产生这个数的，那么我想解决这个问题,需要什么步骤呢？
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What do I have here? I need the variable, ANS, ANS I need x, and I need ANS times ANS, ANS times ANS. Right. Those are the three things that are involved in this computation.
因此让我先用这个方法做吧，我这里需要什么呢？我需要变量，还需要x，然后将ANS乘以ANS，对,在这个计算中涉及到了三件事情。
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t In the b even case, again I'm going to let t of b be the number of steps I want to go through.
如果b为偶数，那么我还是要用,来代表解决这个问题需要的步骤数。
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I need to now put this float somewhere, and I'll put it in a variable called f that you can call it whatever you'd like.
我现在需要把这个浮点数放在哪个地方，然后我把它放在,一个叫做f的变量里,你也可以给这个变量取其它的你喜欢的名字。
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Here, a little more work, and that's why I'll come back to that idea.
这里需要更多些的工作，这就是我回过讲这个问题的原因。
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But the very first point that needs to be made, I think, is this.
但首先需要说明的，我认为是这个。
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But here, as we saw in week zero with the shoe example putting on socks, I have to increment this variable explicitly myself.
但是这里，像我们上周看到的，鞋子穿在袜子上,我需要亲自明确地增加这个变量。
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That means it was something I didn't understand. So I'm going to be cautious and systematic.
这就意味着代码中有一些,我没有理解的东西，因此我需要谨慎,并且系统化的去寻找这个错误。
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First of all, as I just noted, the argument needs premise number one.
首先,像我刚才提到的,这个论证的成立需要前提一
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