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"America's police need to do a better job letting everybody in America know there is a black market."
VOA: standard.2010.08.11
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What I want to do today is three things: I'm going to start-- actually, I shouldn't say start, I'm going to do a little bit of administrivia, the kinds of things you need to know about how we're going to run the course.
今天我要做三件事儿：,我要开始了--其实不应该说开始，我准备做一点儿文案工作，也就是关于怎么上课的,一些你们必须知道的东西。
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For me, that's all I really need. I like to walk around the streets with a camera and just find interesting images, you know.
对我来说，这都是很好的取景。我喜欢走在街上，随时抓拍有意思的事物。
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"They need to invest in activities where the youth can come and relate in a non-religious manner so that involves religion, they know where they need to come back to.
VOA: standard.2009.12.20
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And then next time, next Wednesday-- - because remember we're not meeting on Monday-- next Wednesday, I'll do a similar kind of lecture for everything you need to know about Ancient Judaism, to put the New Testament into its historical context.
下次课上，下周三-,周一没课-,下周三，我会讲你们需要了解的,古代犹太教的知识，将新约放在历史环境中进行研究。
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"He possesses a quality that I value in all my advisors: a willingness to tell leaders what we need to know, even if it is not what we want to hear."
VOA: standard.2010.06.05
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So, if we're talking about five different orbitals and we're talking about a ground state atom, we know that we just need to start at the bottom and work our way out up.
因此，如果我们要讨论的是,五个不同的轨道且是属于一个基态原子的话，我们知道，我们只需要从最低的轨道,开始一个一个往上找。
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"I don't know if he responded to that particular point. There was a general appreciation for the need to continue to build on our military-to-military relationship, and to continue to take advantage of opportunities for cooperation and exchanges,".
VOA: standard.2009.10.27
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You're not going to need to know a lot about this for this course, but this is--I wanted to get the basic ideas down.
对于本门课程来说,你不必,对刚才讲的概率的知识有很深入的了解,我只想介绍一些概率论的基本概念
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Again, I need a hand so I can know where to throw candy.
又一次，我需要大家举手,因此我可以知道哪儿去扔点儿糖。
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I don't need to know about a specific path here.
这只涉及系统的状态函数。
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But this is a good example of what you need to know.
这个例子很好地说明了你需要知道什么
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We don't need to know what the particular notes are, but let's look at this just for a moment because it works well as a prototype of melody.
我们不必确切地知道这些音符是什么,但是还是让我们来看一下,因为它简直就是旋律的典范
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Those doctors would still not be able to improve school performance of the kids with learning disabilities and they would still not be able to prevent cognitive impairment and loss of memory in older adults because at this point we don't really understand enough about learning To know which neurons and synapses within a circuit would need to be tinkered with.
他恐怕还是改变不了有学习障碍的孩子们的表现,阻挡不了老年人的认知功能损害和记忆力的衰退,因为我们对这一学科的确知之甚少,不知道知道回路中的到底是哪些神经元和神经突触需要修复。
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This has outcomes in it, it's an outcome matrix, but it isn't a game, because for a game we need to know payoffs.
这个游戏有不同的结果,我们用结果矩阵来表示,但是它不是一个博弈,因为我们必须知道收益才能进行博弈
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So, we need to take a look at the question of what they are, and how we know about them, and so on.
那么,我们得了解什么是诗歌,如何学习研究诗歌,等等
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you might need math to know how to make a bridge
你可能需要数学知识，才知道如何建一座桥
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To approach this, you'll need to know a little bit about meter.
为了达到这个你需要稍微了解一下韵律。
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Once we can do that we can go on and say okay, what actually is a wave function, but first we need to know how to describe which ones were talking about.
我们就可以继续并说波函数到底是什么,但首先，我们需要知道，如何描述,我们说的,是哪一个波函数。
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What is this? This is a wonderful piece of abstraction. It is saying, you don't need to know squat about what's inside the body of this function. You don't have to worry about the parameter names, because they're going to be preserved, you don't need to worry about how I'm doing it, this tells you how you can use this, in order to use it correctly. Of course, I can then close it off, and off we go.
但是这能告诉你一些信息,这是什么？,这是一段完美的抽象,它的意思是你不需要知道,这个函数的内部构造，你不必担心参数是否重名，因为它们已经被预存了,你不需要担心我如何使用它,它告诉了你你该如何操作，从而正确的使用它，当然我也可以把它关掉。
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You need to know if it's an equilibrium, and you also need to know how many components you have in your system So, a glass of ice water with an ice cube in it, which is a heterogeneous system, has only one component, which is water, H2O.
要知道它是不是平衡的，你还需要知道,你的系统中有多少组分,一杯放了冰块的水，虽然它是个非均匀系统，但它只有一种组分，那就是水。
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So we've got the firms, they're the players, I know what their strategies are, I know a little bit about the structure of the market, and I still need to tell you what payoffs are.
我们有了公司,作为参与人,我知道它们的策略是什么,对市场的结构也有一些了解,我还需要告诉你们收益是什么
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This is what's called the Bohr radius, and we'll explain - hopefully we'll get to it today where this Bohr radius name comes from, but for now what you need to know is just that it's a constant, just treat it like a constant, and it turns out to be equal to or about 1/2 an angstrom.
它叫做玻尔半径，我们后面会解释,希望我们今天可以讲到,波尔半径这个名称的由来，但现在你们只要记住,它是一个常数，只要把它当做一个常数对待，它等于,或者是1/2埃。
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Eventually you will, at least, need to know the labels and know a little bit more about them.
最后至少你们会知道，它们的标记,并对它们有一点了解。
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There's the base case. If it's longer than one, what do I want to do? Well I'd like to check the two end points to see are they the same character? And if they are, then oh, I just need to know is everything else in the middle a palindrome?
如果只有一个元素也是回文，这是基本事件,如果比一个长的话那么我应该怎么做？,我将会查看两头是否相同？,如果是的,我只要知道中间剩下的部分是不是回文即可？
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I think that's because there's a growing recognition that that's what you need to know and that the countries that are emerging successfully are those that have well developed financial institutions that are adopting the technology.
我认为这是因为在那里越来越多人认识到,这才是他们所急需的知识,并且那些成功崛起的国家,都拥有完善的金融机构,并且能够应用这些技术
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If we have a double bond, we know we need to have only one sigma bond, and we're also going to have one pi bond.
如果我们有双键，我们知道我们需要一个sigma键，还需要一个π键。
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You don't need to know those, but just because it's a special case with the hydrogen atom, they do tend to be named -- the most important, of course, tends to be the Balmer series because that's what we can actually see being emitted from the hydrogen atom.
你们不需要记住,但因为这是氢原子的特例,人们想要命名它，最重要的是当然是Balmer系,因为它是我们可以看到的,从氢原子放出来的光谱。
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So if, in fact, we want to describe a wave function, we know that we need to describe it in terms of all three quantum numbers, and also as a function of our three positional factors, which are r, the radius, phi plus the two angles, theta and phi.
实际上，我们想描述波函数，我们知道我们需要,用这三个量子数来描述它，同样，波函数还是,三个位置变量的函数，它们是r半径，还有两个角度theta和。
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