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When you say "I must" what you mean is "I need to do something."
当你说 "I must"的时候，你是指“我必须得做某事。”
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But now, when you need more, you can't just say I only want the best bottom land there is.
然而当你需要更多土地时,你不能张口就要这片地区最富饶的土地
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When you decide to become a front-end consumer-oriented service, you really need to be better than your competition.
当作为前端客户导向型的服务提供商时，就需要做得比竞争者更好。
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All right, so I need to tell you the path, when I go from one state to the other.
好，当我从一个状态过渡到另一个状态时，我需要告诉你们路径。
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So, at the end of the class on Friday, we saw that list of eight steps that you always need to go through when you draw a Lewis structure.
在上周五的课的最后，我们看到了一张,包括八个步骤的流程表。
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All right. What do you do when you've found the bug and you need to fix it?
好了，当你发现错误并修改它们的时候,你该怎么做？记住一个古老的法则？
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There's a very important phenomenon that you need to take into account when you look at these histories of returns that are generated by active managers.
当查阅这些主动管理型基金经理,留下的历史收益记录时,有个很重要的现象
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So, when you go to two dimensions, you need a pair of numbers.
因此在二维空间里,你需要一对数字来描述
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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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Because you see, also motivation and energy-- you don't need research for that, you know that when you are feeling good, you have more motivation, you have more energy-- of course, there is a lot of research to back that up.
因为动力和精力-,不需要研究就能明白，你知道感觉好时，动力和精力更充沛-,当然有很多研究支持这一点。
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So, if you're looking back, say, from the end of the nineteenth century, it's not easy to see, but you can see these-- don't ever think that history runs on railroad tracks, and all you need is the timetable to show when modernization shows up.
所以,当你回顾历史,从十九世纪的末尾开始,虽然不太容易,但还是可以看出...,别以为历史是在固定轨道上行进的,别以为你只用拿时刻表,就知道新时代什么时候来临
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I think that part is fine, but behind that you need something to replace what was there When you have peace then you need to bring in stablity that means economic stability as well as security stability You need the police. You need the government. You need the economy.
我认为计划本身是好的，但还需要一些东西来填充以为以前的空缺,和平了，你就需要稳定，经济稳定，安全局势的稳定等,我们需要警察，需要政府，经济也要发展。
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But we'll soon see when the commands you need to type become longer and more complicated, they just become annoying to type and annoying to remember so make generally automates this process for us.
等下我们将体会到，当我们要键入的命令是,很长，很复杂的时候，要键入它们就变得比较麻烦，并且也很难记忆,所以make通常使这个过程自动化。
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I kind of knew what I was doing when I walked down that road but anyway-you need to have a mix, even in a big company, of smaller entrepreneurial projects, bigger entrepreneurial projects.
当我开始创业的时候，只是了解一星半点,但是你们需要把各种事物综合来看，即使在大公司也是这样，把类型不同的创业共同对待。
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Well, one way of course is to accept the objection and say " "You're right Death isn't really bad for me " And some philosophers have indeed accepted that very conclusion, maybe Epicurus Most of us want to say " "No, no Death is bad for me" So we need a better answer to the ?" "Oh yeah? When is it bad for you?"
一种方式当然是接受它并说,“你是对的，死亡对我来说真的没什么坏处“,而一些哲学家确实接受了,那个结论，也许比如伊壁鸠鲁,我们大多数人想说,“不，不，死亡对我来说有坏处“,于是我们需要一个更好的答案来回答,“是么？，它什么时候对你有坏处了“
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So, we can think about what would happen if we're on his thesis defense, we're on his thesis committee, we would need to think of some pretty mean, hard, nasty questions that's what happens when you defend your thesis.
所以，我们可以设想一下,如果我们在他的论文答辩会上,担任论文委员会的成员，那么会发生些什么，我们会想一些非常严厉的,冷酷无情的，险恶的问题,那也是你们在论文答辩时,会遇到的情况。
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If you're stuck, if you're struggling, if you're not certain about something, please ask. We're not mind readers, we can't tell when you're struggling, other than sort of seeing the expression on your face, we need your help in identifying that.
如果你很差，如果你很纠结，如果你不确定某件事情，请问我们，我们不会读心术，我们没法儿看出来你们很纠结，除非能从你们的面部表情看出来，我们需要你们在这件事儿上的配合。
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What you need to know is that when m equals 0, 3dz2 it's 3 d z squared.
你们要知道的是,当m等于0时，它是。
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So, when in doubt, if you're having some weird character issue, odds are you need to escape it in some way.
如果你有拿不准的字符,可能就要用到转义字符了。
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It turns out that when you're talking about macroscopic properties of matter, you don't need very many variables to describe the system completely thermodynamically.
实际上,当你谈及物质的宏观性质时，你并不需要很多变量才能从热力学上,完整地描述这个系统，’
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So, today we're going to introduce the chemistry topics, which we will cover in 5.111, and give you general information, practical information about the course number of points you need, when the exams are, that kind of thing, policies, and introduce you to the teaching staff.
今天，我们将向你们介绍这门课会涉及的化学问题，并告诉你们一些基本信息和实用信息，像你需要的课程分数,考试时间，课程政策，以及授课教师。
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Generally I can bear who is now Ambassodor said you need to have the engineers following 1 kilometers behind the troops when they entered to this areas to show the people that we were there, we were there to stay. That remains true.
我可以理解现任大使所说的,紧跟着军队之后，我们还需要工程师来建设这个国家,这些工程师进来之后，当地人民就知道我们在这里，我们要留在这里，而这也是事实。
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Why not write the program in a way where you figure out dynamically when the program is run how much memory you need rather than hard coding in two with or within that constant.
为什么不写一个可以动态的方式写那个程序,程序可以动态分配内存,而不是用常量硬编码两个值。
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And just intuitively, when might you need to put a backslash in front of a double quote given the examples we've seen thus far?
凭直觉来看，迄今为止，你们什么时候,会用到\“呢？,举个例子？
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Now I seem to be violating my own mantra here by just calling this variable A, but this is reasonable, I much as with four loops when you just call an incrementing variable I, because you just need an index, well, same here.
现在我好像违背了我自己的意愿,我把这个变量叫做A，但这是合理的，就像我们的for循环中，我们把一个增变量叫做,因为我们只要一个索引，这里也一样。
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