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We need to innovate. We need to have more value-added things in the Chinese economy or in the GDP composition.
中国需要创新,需要更多高附加值的产品。
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However, the thing to remember is, when you look at heats of reaction under those conditions it's all well and good.
相反，需要记住，当你需要知道反应中放出的热量时,这些量是很有用的。
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I can take you and immediately start designing batteries, because we need ions in motion, we need small ions in motion.
我可以从此让你快速起步设计电池，因为我们需要能运动的离子，我们需要能运动的小型离子。
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So that, to think nothing is something you have to work at; it's something that you can be preoccupied with.
所以脑子里一片空白,也是需要你努力的事;,需要全神贯注的事。
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If we're going to write programs, we need at least two things: we need some representation for fundamental data.
如果我们要去写程序，我们需要至少两件事情：,我们需要一些能代表基础数据的东西。
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So, there are a lot of decisions like that, that are getting made and a lot of them are gut level.
我们需要作出许多类似的决定，而这些决定都需要靠直觉来抉择。
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So we need to go to this second case where we're instead going to think about electronegativity, and we want to think about which atom is the most electronegative.
因此我们需要转到这个第二种情况,来考虑一下电负性，我们需要想想哪个原子的电负性是最高的。
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And in fact in one with the girl describing her side, she several times emphasizes this need for protection, need to be free from being torn down from people around them.
事实上像一个女孩子表达的那样，她好几次强调了需要保护的愿望，需要逃离那些打倒她的东西,逃离身边的人们。
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Anything where you're actually keeping track of something like a score that's having a variable that you increment -- plus, plus, or decrement, minus, minus, using the appropriate puzzle piece could certainly be compelling.
你需要保存像分数这样的事物时,你就需要一个变量,它可以自加，++，或者自减,要使用正确的拼图。
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And then, suddenly I need to MacBook Air sell my MacBook Air on Craigslist and I can take the person's credit card instead of having them bring $1200 to me or whatever I'm selling it for.
之后突然我需要,在克雷格斯利斯特网站上卖我的,而且我可以让那个人拿信用卡过来,而不是,带着1200美元或是我需要的别的东西给我。
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But beyond the basic needs, once our basic needs are met and that means food, shelter, basic education.
但超出基本需要后，当我们的基本需要得到满足，即有食物，住所，基础教育。
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And I just have to do this today on the Greco-Roman world, tell you everything you need to know about the Greco-Roman world, at least for this semester.
今天要讲的古希腊罗马时代，告诉你们所有需要了解的古希腊罗马知识，至少这学期需要了解的知识。
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He needs to voice this tirade, and he needs to write this politically motivated harangue.
他需要发出这篇冗长的攻击性演说，他需要写出这篇被政治意图策动的高谈阔论。
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We need not just that you're all rational players, not just that you know each other's rational, but you know everyone else's rational.
不仅需要你们都是理性的参与人,不仅需要你们知道对方是理性的,而且必须知道所有人都是理性的
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In the case of life insurance, they developed actuarial tables that require a collecting of statistics.
就人寿保险来说，还需要开发出精准的表格,这需要收集很多统计数据。
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It requires, for Machiavelli, the founding of regimes requires that kind of cold and cruel calculation.
对马奇亚维利而言，那需要政体的创建,需要那种冷酷与残忍的算计。
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People need fat, and they need sugar, and they need variety--at least what their brain thinks.
人类需要脂肪和糖类,需要各种物质,至少大脑是这么认为的
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And indeed,it doesn't seem as though we have to require the entire brain, just enough of the brain,however much that turns out, to house personality,memories and so forth.
事实上，也不需要整个大脑，只需要包含着人格和记忆的，那部分大脑就够了。
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I'm a Yale college student, for the purposes of this thought experiment and I live in Pierson because I need to walk a great distance to Chapel Street, to the Starbuck's on Chapel Street.
我是一个耶鲁的学生，出于实验的需要,我住在皮尔逊校园里,我需要走很远的路去新教堂街，去新教堂街上的星巴克店。
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Now we're in trouble and I say, don't run away! There are no techniques, there are no maneuvers, there are no -- you can't do anything and so they didn't practice very much, except one stunning exception, the Spartans.
现在形势不妙,我说,"弟兄们,顶住",这些不需要技巧,不需要熟练的动作,也不需要--,你对战场上的一切都无能为力,因此他们也不需要什么操练,唯一让人赞叹的特例,就是斯巴达人
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And if the government didn't provide for the poor as ten percent as you say through taxation, then we would need more money for police to prevent crime and so, either way, there would be more taxes taken away to provide " what you guys call the necessary things that the government provides.
如果政府不能,通过税收来补贴你所提到的10%的穷人，则需要花更多的钱雇警力来防止犯罪,所以，不管怎样，都需要交更多的税,提供你们所说的政府该提供的“必需品。
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If I know about the states involved, I just need to know what the volume was in each of them.
我们并不需要知道一条特定过程的路径，如果我们知道所涉及的态,我仅仅需要知道这些态的体积。
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I've got some internal variables I have to store, what kinds of things do I have to keep track of?
计算的时候需要占用多少内存,我需要存储一些内部变量,我需要记录哪些东西呢？
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The second way to have something that is net nonpolar is to have spatially symmetric disposition of polar bonds.
第二种构成,需要空间非极性,就是需要极性键的空间对称分布。
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Occasionally, you'll find you need to cancel out units, because, of course, you're always doing unit analysis as you solve your problems, and sometimes you'll need to convert joules to kilogram meters square per second squared.
偶然地，你会发现需要消除单位，因为在解题时,经常要做单位分析，所以有时候需要把,焦耳换做,一千克乘以米的平方除以秒的平方。
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You actually need to kind of do this and then you can swap these two numbers but it requires 50 percent more memory.
你实际上需要这样做,然后才能交换两个数字,但是它需要多50%的内存。
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Now remember, we went through before how it's a state function but to calculate it, you'd need to find a reversible path, along which you can figure this out.
请记住，我们不需要知道它是怎样的一个态函数,只计算就可以了，你需要找到一条可逆路径，沿着这条路径就能算得这个结果。
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It pays another pound two years from now, it pays another pound three years from now.
从现在起的第二年需要支付第二个一英镑,从现在开始的第三年需要支付第三个一英镑
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And that implies that since the quantity we want is given by this quantity, which is zero times a constant, the quantity we want is also zero.
因为我们需要的量,是由这个量乘以一个常数，因为这个量是零，因此我们需要的量也是零。
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And it's worth pointing out that-- a point that I didn't make last time-- it's worth pointing out that, what the computers, at least the best chess-playing computers don't do.
需要指出的,上次课我并没有提到这一点,需要指出的是,电脑,至少最棒的国际象棋电脑,并没有做什么
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