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The elephants look up and watch as your boat turns away and you head back to camp at the end of another day on safari in Africa.
VOA: special.2009.08.19
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Let me take you back to the seventeenth century, up to the very beginning of the literary reception of John Milton.
让我把你们带回到17世纪，约翰·弥尔顿刚在文学领域为人所知的时候。
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Back when I was coming up, there were a lot of gangs. There were a lot of, you know, the drug thing.
回想我长大的年代，那时有很多帮派。发生了许多与毒品相关的事情。
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And you can ask them any sort of question you want, and they'll look it up in English or in Hindi, or whatever the main language is, and translate the answer right back for you."
VOA: special.2009.10.12
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If you scroll back up on the printout or screen here, you'll see that you can actually not only declare function's prototypes, their general structure.
如果我回滚到打印输出或者这个屏幕，你们将看到你们不仅可以声明函数的原型,它们的一般结构。
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What I really love about New Moon is you see this girl really build herself back up and by the time she makes the sort of rash decision to spend eternity with a vampire, you believe her.
VOA: standard.2009.11.23
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If you put a property up as collateral, then the lender knows that they can get the money back from you.
如果你以资产作抵押,贷方就知道债务偿还有了保障
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But if it is not, it's going to print out a message here saying, you screwed up, somewhat politely, and it's going to go back around. So it'll just cycle until I get something of the right type.
但是输入不是浮点数的话,我这里就会显示一个消息说，你搞砸了，该稍微有点礼貌吧？,然后我们继续执行循环,一直到得到正确类型的输入。
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So, what I'll ask is can you stand up if you had your particle bounce back?
有13个背散射,助教们？
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You have to find the place,then,roll it all back up.
找到之后看完还要卷起来。
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As I'm sure you know, we're able, with various lower organisms, to put them in a state of suspended animation and then, the amazing thing is, if you heat them back up again properly, they start functioning again.
我想你们一定知道，我们能够使各种低等生物，进入假死状态,而后令人称奇的是，如果将它们正确地重新升温，它们又会重新恢复功能。
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Well one reason I want to go back is you'll notice I've been putting up these lines on the board and when we visited elections on the second day, we said that you could think of that line on the board, as being not just left wing, right wing politics but also some dimension of products.
原因之一是我想你们将注意到,我在黑板上画了一条线,当我学习第二天学习的选举时,我们讲过你们可以想象黑板上有条线,不仅是左派和右派的政治家,还可以是某种产品特性
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You've got to pretty much take that chalk, and make a slurry out of it, put water, and dry it back up, put in a mold, and then you can have the chalk again, but you can't just glue it back together.
你得尽可能地收集它的碎片，把它做成粉浆，加水然后风干，放进模具，然后你就能重新得到这支粉笔，但是你不能简单地把它粘起来。
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What you'll notice is this hit and this hand went back up.
你们会看到,先有撞击,然后手会回到原先的高度
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Now, this looks like a very innocuous thing, but you will find out,it is the only thing that really gets my back up. Most of the time I don't really care.
我知道这也许比较令人难以接受,但是这是我唯一的小小的要求,大部分时候我还是很随和的
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everyone falls down, you just got to get back up.
人人都摔倒，站起来就好。
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And what happens of course thereafter, as you'll remember, is that Lily pops up from the back seat: "Hi." He didn't know that she was there.
那么，在那之后发生了什么呢，正如你所记得的,莉莉从汽车后座突然跳出来，你好，他根本就不知道她在那儿。
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And many people would look back on Dell and say, "You just went straight up." Well, not exactly.
回头看戴尔的发展历程，很多人会说，你们的业绩直线上涨，其实并不尽然。
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If you look back over it, there was no major or minor in western music up until about sixteenth century, and then people started writing these things called madrigals, that were tied to texts.
如果回顾下历史,大家会发现直到十六世纪,西方世界才出现大调和小调,那时人们开始写一种叫做牧歌的曲子,并配上歌词
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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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I think the book has a fairly good description of it so if you don't pick up everything in the lecture, hopefully you've read that beforehand, and you can go back to it afterwards and read about things that didn't make sense.
我认为课本对DNA表述很详细,所以在课堂上无需面面俱到,希望你们之前做过预习,课后你们可以通过复习,弄懂那些不甚理解的地方
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The unsorted, and you have exactly the point I want to get to-- how come all the guys, sorry, all the people answering questions are way, way up in the back? Wow. that's a Tim Wakefield pitch right there, all right. Thank you.
所有的同学，抱歉,所有的人们都是这么回答的，扔到后面，哇，这是一个Tim，Wakefield式的投掷啊，谢谢！,他完全正确，不是么？这比这小么？
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That is the fundamental idea that may seem simple and obvious to you, but it certainly wasn't back when the idea first came up.
刚才讲的就是最基本的概念,可能看起来比较简单明显,但这些概念刚出现时并不被广泛理解
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Right? You're kind of caught up, but you step back and say, "That's just insane."
你被卷入其中了,但当你退出来时会说,"真是太疯狂了"
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So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.
如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。
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So when you operate on the wave function, what you end up with is getting the binding energy of the electron, and the wave function back out.
所以当你将它作用于波函数时，你得到的是电子的结合能,和后面的波函数。
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The reason I want to point this out to you is, if we go back up to the kinds of data objects we started with, floats, ints, strings, they actually behave the same way.
我要为大家指出这一点的原因是，如果我们想一下以前讲过的,数据类型的种类，浮点数，整数，字符串，它们实际上有相同的行为方式。
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But then suddenly they get yanked back, and they wake up, you know, in the hospital room.
但是突然他们被猛拽回来,然后他们在病房里,醒了过来
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One hour of recitation a week, on Fridays, and we'll come back in a second to how you're going to get set up for that.
周五是每周一小时的复习课，一会儿我们来说,怎么去准备那个课。
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Again, you have to let me back up slightly and set the stage.
怎么去写代码,让我准备准备。
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