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The two things that you focus on are maintaining what you have now that's good and growing, all right?
你需要注意两件事,第一是保持现状，第二是不断发展？
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Or in another example, let us look at how we can use the "How can I" pattern in a way where you don't want to answer.
在另一种情况中，我们来看看如何使用“How can I”的第二种意思，即不需要回答的情况。
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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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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 the second thing we're going to need, is we're going to need a way to give instructions to the computer to manipulate that data.
我们需要的第二件事情是，我们需要一种,能给予计算机指令,以操作数据的方式。
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The second point to clear up is that there's really three different issues that might interest us.
需要解决的第二点是,有三种不同的观点,也许能够引起我们的兴趣
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Okay, I need a second volunteer for reasons that will be clear in a second.
好的，我还需要第二名志愿者,原因过一会告诉大家。
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The oboe may have the seventh partial very strong and the third partial very strong whereas the trumpet-- I'm just making all of this up of course-- the trumpet may have the second partial and the fourth partial and the sixth partial.
双簧管的第七泛音,和第三泛音都很强,而小号,我只是为上课需要假设的,小号可能是第二泛音,第四和第六泛音比较强
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Second, we take it very seriously that we need to translate the work we do to humans.
第二，我们是经过慎重考虑的,我们需要将试验的结果应用于人类。
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When they started to calculate how much rice would be need to fill up all blocks, all the way to 2 to the power 63.
当他们开始计算,需要多少粒米填满所有方格时，从第二格到第63格。
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So what we're going to do is consider the first and second laws.
我们需要考虑的是,热力学第一和第二定律。
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But we've been so completely socialized into thinking two things: one is that we need water with us all the time; and second we have to buy it.
但如今我们都对以下两个观念习以为常了,第一是我们每时每刻都需要水,第二是我们要花钱买水
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There are some chapters here for readings: Chapters 1, 2, and 4.
你们需要阅读,第一章,第二章和第四章
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If we have a higher z effective, it's pulled in tighter, we have to put in more energy in order to eject an electron, so it turns out that that's why case 2 is actually the lowest energy that we need to put in.
而如果有效核电量更高，原子核的束缚也就更紧，我们不得不输入更多的能量来打出一个电子，这就是第二种情况,所需要输入的,能量更少的原因。
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But what looks like this orange block as of now in Scratch, add orange to your so called inventory, well, it's gonna take at least two lines of code in C to actually create the inventory array with this first line and then put something like the word orange inside of it.
就好比Scratch里面橘色的这一块，把“桔子“加到所谓的“清单“里面去,在C语言中至少需要两行代码来实现,第一行代码创建一个货单数组,第二行就需要把“桔子“放进去。
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OK. Second thing I need to do, though, is I need to, when I get those values, I want to hang on to them.
好，我需要做的第二件事情，就是我需要去，当我得到这些值后，我想抓住这些值。
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So, this is actually kind of neat to point out, because we all remember J.J. Thomson Thomson J J Thomson from our second lecture, and J.J. Thomson got a Nobel Prize in 1906 for showing that electrons exist in that they are particles.
所以，这个确实需要要指出，因为我们都记得第二堂课,讲到的,因为发现了电子具有粒子性,在1906年获得了诺贝尔奖。
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For our step two, what we need is number of valence electrons.
我们的第二步，需要知道价电子的个数。
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Second thing we've got to worry about is, what's a basic step? All right, if I bury a whole lot of computation inside of something, I can say, wow, this program, you know, runs in one step. Unfortunately, that one step calls the Oracle at Delphi and gets an answer back. Maybe not quite what you want.
我们需要担心的第二件事情就是，什么该作为一个基本的步骤呢？,如果我把一大堆的计算过程放到里面，我可以说，噢，这个程序你知道的，一步就完成了，不幸的是,这一步可能要靠预言家才能得到答案,这可能跟你想要的结果不太相同吧。
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Second thing is, if you have an MIT documented special need for taking quizzes, please see John or I well in advance.
第二件事，如果你有MIT证明的,需要取消考试的特殊要求，请提前来见John和我。
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