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So it doesn't matter how big the dictionary is, you can instantaneously retrieve the value associated with the key. Extremely powerful.
因为你可以在线性时间，内得到想要的键对应的值,这太强大了。
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because when you write here, it seems like every sentence you write, you have to cite to something else anyway.
因为在这里写作的时候，似乎你写的每一个句子你都要引用其它的东西。
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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 also have experience of that because you came from New York University, in fact you still serve at New York University.
你也一定有类似的经历吧,因为你之前是在纽约大学读书，先在也在纽约大学留任了。
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You have to be comfy on camera but this is your first chance to say hello to mom and dad on camera.
在镜头前表现得自然点儿,因为这是你第一次在电视上跟爸妈打招呼。
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You sneeze because you've got all these germs inside you and your body wants to get the germs out, so you sneeze.
你打喷嚏，因为细菌在你体内,你的身体想把他们赶出去，所以你打喷嚏。
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If you hook a radio wave up with a radio, you can tell the radio wave was there because what the radio is doing?
如果你用收音机检测无线电波，你可以知道无线电波在那,因为收音机在干什么？
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But it's not a big con, because you can set up experiments in free space far from everything, where objects will, in fact, maintain their velocity forever.
但这并不是个反例,因为你可以在一个远离一切的空间里做实验,在那里,物体可以永远保持现有速度
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In a normal--in a simple partnership, the partnership would not be taxed because it's you doing business just as partners, so you are taxed but not the partnership.
简单的合伙制企业,正常情况下是不需要缴税的,因为你是在以一个合伙人的身份来做生意,所以要对你征税而不是合伙制企业
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Coz when you are little your life is up.
因为当你还小的时候，你的生活都在上面。
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Hesiod is not alone in saying, for God's sake try not to take a voyage at sea because your chances of coming back are really bad, which was a reality to a degree.
赫西奥德不是唯一一个说,看在上帝的份上不要试图在海上航行,因为你几乎不可能返航,在某种程度上这是实话
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because when you're up on that point, you see anything that's in the water, anything close to the surface and,
因为当你站在那里的高处，你能看到贴近水面的一切，而且，
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Just a few small points. First of all, keep in mind that the bug is probably not where you think it is. Because if a bug were there, you'd have already found it.
第一，记住错误可能不是，发生在你认为的地方,因为如果那儿有一个错误,你可能已经找到了它。
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We call that inversion because on one side you end up cooling if you compress.
因为在这个温度的一边,当你压缩气体时气体降温。
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But that's the only one he's going to lose because you were defending the wrong pass.
但是他只会损失一个营,因为你选择了在错误的途径设防
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Yes. I think that you don't really have self possession if you choose to live in a society because you cannot just discount the people around you.
是的，我认为如果你生活在社会中,就不可能完全拥有自主权,因为你不能无视其他人的存在。
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It's because food is there.
只是因为食物就在你眼前
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There're also changes of what you can teach, extends what you can teach, because you can get to concept which are really quite sophisticated that you will never teach it at the introductory level, because the math is the least that you can make it quantitatively, because you have a visualization that shows physically what's going on.
同时这也能改变,教学内容，你能教授的程度，因为你可以定义,那些通常很难的,你在入门阶段都不会遇到的,抽象阶段，因为数学是你最不能,用定量手段来解决的，因为你有一个直观过程,知道什么正在进行。
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So it's kind of... it's nice that you can choose because I feel like you have a better time in class.
可以自己选课是件很好的事情，因为这样你在课堂上感觉会更好。
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Because it implies that it seems as if the person you are speaking with has never done that thing.
因为你在暗示跟你谈话的人似乎根本没做过那件事。
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This is incredibly important because if you picture having a double bond in a very large molecule, you could have all sorts of other atoms off this way and all sorts of other atoms off this way, and you can picture the shape would be very different if you have one confirmation versus another confirmation.
这是十分重要的,因为如果你想象在一个大分子里有一个双键，你可以在这里有各种各样的其它原子,在这里也有各种各样的其它原子，你可以想象一个构型,和另外一个构型之间的形状差别是非常大的。
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Because we do try to give as much partial credit as possible in these exams, since there are a lot of places where small mistakes can result in the wrong answer.
因为我们会尽量把能给你的步骤分都给你,在对于这种考试时，因为有很多地方,只要出一点小问题就会导致最后结果出错。
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Cause when you can actually manipulate a computer's memory at this low level, you can steal people's passwords, you can steal their data if you know how that memory is laid out.
因为即使是在这么低的权限下,你也能熟练控制电脑的存储器,你就可以窃取别人的秘密，如果知道相应数据位于哪里的话,你也能窃取别人的数据。
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Because it's hard when you go back being part of any group. Once you are in that group, and away from other people, it's very hard to remember We've talked that -Oh, have you?
因为如果你回到原来的群体中,就会变得难了，因为你只要一呆在那个群体中，远离其他人，就很难,我们聊过这个，-是吗？
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You get excited when you're playing chess at the prospect of capturing my queen and crushing me.
在玩象棋的时候,你因为希望,吃掉我的皇后下赢我而感到兴奋
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The spring is getting squashed because you are pushing down and the floor is pushing up.
弹簧现在被压缩了,因为你在往下压,地面在往上推
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Of course, the banker isn't going to give you $1 for something that is paying $1 in a year because the banker knows that $1 could be invested at the interest rate.
当然,银行不会因为某些东西,在一年内收益一美元,而给你一美元,因为银行知道一美元能在利率的基础上,用来投资
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You know, if you want to measure the potential energy of something in a gravitational field, you have to define the zero somewhere, right, because it's arbitrary. You can set it anywhere you want. It's the same with enthalpy.
你知道，如果你想测量重力场,中某种东西的势能，你需要，在某处定义一个零点，对吧？,因为势能的值是任意的,你可以把它设定在。
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So, if we want to think about what the first ionization energy is of boron, what you want to do is write out the electron configuration, because then you can think about where it is that the electron's coming out of.
如果我们要考虑,硼的第一电离能，你首先要做的是写出它的电子排布，因为在这之后,你才能知道拿走的是哪里的电子。
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And that's fine, because inside of curly braces can you redeclare variables with the same name if you intend to quote unquote shadow the previous variable.
那是可以的，因为,在花括号里面，你可以重新定义一个,相同名字的变量,如果你想引用之前的变量。
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