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You do not always know if a clay object will survive being fired at high temperatures.
VOA: special.2009.09.09
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You know, if I had like shells and peas here I could make some more money. What do I do?
要知道，如果我喜欢贝壳和豌豆的话,那么我可以赚更多的钱？
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even if they can't afford to actually come here and, you know, do the whole thing.
即使他们没钱来，没法经历整个过程。
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Do I have two yes answers if you wanna check two conditions at once? You know, this might seem to be a bit of a new context for some of you but consider a typical website.
我能不能对两个条件同时判断,来看看它们是不是都为真？,这些概念可能对你们中一些人有点新颖,那么就考虑一个典型网站。
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But if you say, well, I don't know how to do this, I am not going to bother, don't grade the paper.
但是如果你说，好吧，我不知道怎么做这个，我想麻烦，别给试卷评分。
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You'd pull out your pencil and paper, you can do it as a matrix inversion if you know how to do that, or you can just simply do substitution of one equation into another to solve it.
你知道你在小学的时候是怎么做的对吧？,你拿出你的笔和纸,如果你会的话,你可以解一个方程组,或者你可以单纯地。
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That's what you need to know if you're going to do life insurance.
如果你想从事人寿保险,你必须对它有所了解
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So if we lower the synergy here, not only do I contribute less effort, but you know I contribute less effort, and therefore you contribute less effort and so on.
如果我们减少协同参数,不但我会少付出努力,而且你也知道我会少付出努力,因此你也会少付出努力,以此类推
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In any event, this is some interesting research opportunity, so again, no obligation, you don't have to do this, I won't even know if you are or not, but I just thought I would present these in the case you might find them interesting things to do.
不管怎样,这都是些不错的研究机会,不过不是强制的,我甚至都不知道你们参加与否,不过我还是会把这些放在这里,这样大家可能会找到一些有趣的事情去做
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That is, if you plot the relationships between people We can take each person in this room, find everybody you know and who knows you and draw a line, but if we were to do this you wouldn't find an even mesh of wires.
也就是说如果要划出人们之间的关系,例如这个教室里的人，把互相认识的人用线划出来，如果我们这样做,得到的结果不是一个分布均匀的网状图。
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So if you want to do well in 1504-- you'll know what you need to do, right?
如果各位想学好1504这门课-,你们知道该怎么做了，是吗？
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And you want to know what they would do if they were in your shoes.
你想知道如果他们站在你的角度考虑他们会怎么做。
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If you know how to do it, you can get it for really cheap.
要是你知道怎么做的话，你就可以买到很便宜的票。
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If a worshipper should make a mistake, do you not think God will know his intent?"
如果崇拜者犯了错，那么,你以为上帝不知道他的意图吗“
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If you want to know something like when do you hit the ground, I think it's fairly clear what you have to do.
如果你想知道车子何时落地,我想你该做什么就很明显了
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Well, if you're a poor farmer, you don't know what else to do.
如果你是一个贫困的农民,你不知道自己能干什么
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If you had genetic scans that were available for disease prediction, do you want to know everything that's going to happen to you in terms of susceptibility to disease?
如果我们有基因扫描技术,可以预测疾病,你是否愿意知道,你都可能会得什么病
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Every child, every one of you, every one of us was brought up to know that one must never do wrong, even if good consequences are seen to follow.
每一个小孩，在座的各位，我们每一个人都从小被教育,不要做坏事，就算结果是善也不行。
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And this is exactly what the neuron will do all over before going into recepting into a tumor, for example if you have under your brain to know what the different regions of the brains do.
这就是在阻截肿瘤的时候,做神经手术要做的，比如你明白了大脑,不同区域都做些什么。
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So it might look like here, if you don't understand about p orbitals, which I know all you do, but if someone else was just looking and seeing, it kind of looks like there's two bonds here.
这里看起来有点像，如果你们不知道p轨道的话，我知道你们都知道，但如果另外有个人看到这个，这看起来有点像两个键。
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but if you do something really like interesting, you know, then...
但是如果你做一些真正有趣的事，然后……
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So realize the support structure is now in place and in progress so do just let us know at help@cs50.net if you have questions that can't be addressed during office hours.
所以请意识到支撑结构已经出来了，并且正在进行,如果需要帮助，如果在课堂时间有任何不懂的问题,请在help@cs50，net上面给我,留言。
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Well, it's, you sort of know how you'd do it if this was grammar school right?
你怎么解决这个问题呢？,很简单？
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Not to harp on the mathematical features of this, but cubing, AX*X*X you know, if you're starting to do AX star, X star, X, every time you want to cube some value in a program, it just feels like this is going to get a little messy looking, if nothing else.
不要总是说这个的数学特性，但是体积，你们懂的，如果你开始做，在一个程序中，每次你想算几个数值的体积，感觉它就变得,有一点凌乱的，如果没有其他的。
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I don't know if the news media are concluding anything, but you do see--we have seen-over recent years, we've seen a lot of suggestions that the turning point is just around the corner and the news media report that.
我不知道媒体是否的出过什么结论，但是我们也看到了，近年来，我们见证了很多改革建议,经济的转折点马上就要来到,媒体是这么报道的。
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And yeah, I know you know how to do it, but let's think about what might happen if I wanted to do that.
对，我知道你们知道该怎么做，那么让我们看看如果我,想要完成的话会发生什么。
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It's best if you don't know what that is or even if you do mistakenly attribute it, misattribute it, to physical attraction, romance, intimacy, passion and commitment, it's love.
最好是如果你不知道是什么,甚至如果你错误认定，以为是生理吸引力，浪漫，亲密，激情和承诺，那是爱情。
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Well you do that by this Watson-Crick base pairing, so I know if I have I know what messenger RNA to make from that because I have to satisfy these base pairing rules.
依据的是沃森克里克碱基互补配对原则,如果给我一个ACGCGA的序列,就能知道转录出的mRNA会是什么,因为我必须满足碱基配对原则
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Well let's see. My fall back is, I could just do linear search, walk down the list one at a time, just comparing those things. OK. So that's sort of my base. But what if I wanted, you know, how do I want to get to that sorted list? All right?
我只能做线性搜索了,一次遍历一遍列表，一个一个比较，但如果我想要,那怎样得到有序的列表呢？,现在的一个问题是，我们排序之前？
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