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"Everybody just really needs to be aware that the Internet is just like any other street and there are some twists and turns that can take you in to some very,very unsavory places."
VOA: special.2011.05.09
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But a lot of it is just like you define your objectives what you're going for.
但你首先要做的,是明确目标，清楚自己想要什么。
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I mean the best thing you can do is just go in there and hope that they like you.
我的意思是，你能做的最好的事情就是去那儿，然后希望他们会喜欢你。
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What I'm going to do for about the next 15-20 minutes is just tell you what the class operation is like so everybody knows.
我接下来15到20分钟要做的是,要告诉你们这个班的管理是什么样的,这样大家都可知道。
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And what we want to say of course is, look, just like it's still your body, even if you break your arm.
因此我们可以说，即便你摔断了胳膊，你的肉体也还是原来的那个。
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In binary search-- ah, there's that wonderful phrase, this is called a version of binary search just like you saw bin-- or bi-section methods, - when we were doing numerical things- in binary search, I need to keep track of the starting point and the ending point of the list I'm looking at.
就是当我们处理数字的时候，所称的二分检索，在二分法搜索中,我需要记录区间的开始点和尾点，初始化的时候就是-,问题输入的开始点和尾点，当我开始做测试的时候,我想要做的就是去取中值点。
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> So is there a slash letter command for printf they could just like type you know what I mean?
>，所以这里有一个斜杠字母命令,来printf，他们可以像,【听不见的】你懂我的意思吗？
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But there is this sort of sense of uncertainty that you see in someone like Descartes, who finally just goes back to basics and says, "I think, therefore I am."
你可以在那个年代从某些人身上,看到一种怀疑的精神,比如笛卡尔,他最终逐本溯源提出"我思故我在"
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This is a food, a common food that most people would recognize, and I'd just like to see if you could guess what it is from the list of ingredients, so take a moment to look at the list of ingredients and then I'll see if you can guess.
这是一种食品,一种大多数人都见过的普通食品,我想看看,大家能否通过配料表猜出这是什么食品吗,所以,花点时间来看看这张配料表,看看大家能不能猜出来
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This is what's called the Bohr radius, and we'll explain - hopefully we'll get to it today where this Bohr radius name comes from, but for now what you need to know is just that it's a constant, just treat it like a constant, and it turns out to be equal to or about 1/2 an angstrom.
它叫做玻尔半径，我们后面会解释,希望我们今天可以讲到,波尔半径这个名称的由来，但现在你们只要记住,它是一个常数，只要把它当做一个常数对待，它等于,或者是1/2埃。
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The laugh is a lot like the "wow." It's that sound you make just because you're experiencing something, just because you're having a response to what's in front of you, something someone says.
这笑声很像“哇“这个字，是一种,因为正在经历某些事而发出的一种声音，作为你对面前发生的事或是，一些人说的话的反应。
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the different states want corporations to register and therefore the rules are such that they protect the corporation with the poison pills I can't get into all these different things - -stagnant boards, poison pills- and I think if you just change some of that we could be like, for instance, England is much better.
每个州都想让自己的企业注册,所以现在的规则就是,各州都用毒药丸保护企业,我不能干涉所有的这些东西,-没有进步的管理层，毒药丸-,如果你愿意改变其中一些方面的话,我们就会像，例如，英国企业的情况比美国好多了。
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But it is a good resource to go to, for like just finding out what something is if you've never been there.
但（网站评级）是个很好的信息来源，就好像你从来没有去过那里，但你却找出了关于它的信息。
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I think it has become so cliche to say, "Oh, I like Tim Burton, you know. I think just his style is so cool."
我认为再说，“哦，我喜欢蒂姆•波顿，我觉得他的风格很酷。”就是陈词滥调。
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And I feel like the key to, you know, college is just to learn everything
而且，我认为，上大学的关键就是要广泛涉猎各门学问，
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Everything is farmed in a new way and let me just give you a picture of what this new farm that Hanson describes is like.
每种作物都是以新的方式来栽种,让我来描绘一下这幅新农场的图景吧,就如汉森描绘的那样
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All right. So you probably read in the book that the bassoon is a double reed instrument, and so just to show you what that looks like-- You've probably seen it but if you haven't, two pieces of wood vibrate together when I blow through them.
好的,你们可能在书上看到过,巴松管是个双簧乐器,我将为你们演示双簧怎样演奏,你们可能见过,如果没有请看我演示,我吹奏时,两个木片会一起震动
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You just mentioned Portobello Road. What is it like?
你刚刚提到波托贝洛大道。它是什么样的？
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And you're just like, "where is this train?
你就会想，“车在哪儿？”
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Just like each of you is viewing the world from a particular location.
就像你们每个人,通过某个特殊位置去观察世界一样
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So how do we get you from for many of you zero to 60 miles per hour after just 11 weeks, well like many courses here is the course structured around not only lectures for conceptual introductions, but sections, office hours and walkthroughs.
十一周后,很多人每小时都能知道60公里内发生的事情，就像这里的很多课程一样,这个课程不只有概念性的介绍，也包括上机和演练讲座。
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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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And it feel like really this is just one of those like games the magicians play in the square where you are literally moving the cups around accomplishing nothing other than confusion - with the audience but-- which may actually be the case-- but, I argue that this is actually better.
看起来这就是一种,魔法师在广场中玩的游戏,在这个游戏中你只是逐个地移动杯子,除了让观众觉得困惑，其实什么事都没做,-但事实又是什么呢-,实际上我觉得不仅仅如此。
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So, you just say, well, this is like a bullet going through pumpkin.
你会说，好吧，这就像一颗子弹穿过南瓜一样。
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All right now, now what I'd like you to do is just sort of do a guestimate in your mind of the percentage errors you might have made overall in these estimates, and I'll come back and ask you in a minute.
好了,现在,现在我希望你们,在脑海中估算下你们预测的百分误差,你们可以就总值做一个估算,我会在一分钟后问你们
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With this, if I can assume that accessing the i'th element of a list is constant, then you can't see that the rest of that analysis looks just like the log analysis I did before, and each step, no matter which branch I'm taking, I'm cutting the problem down in half.
读取数组中的第i个元素,是个常量时间的操作的话，我也就能像以前那样得到,这个算法是对数级复杂度的分析,并且每一步不管我选择哪个区间，我都可以把问题的规模缩小一半。
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vigenere Well, this is, again, this is kind of like caesar stuff or vigenere where you just copied characters back and forth.
这是有几分像caesar或者,你只要前前后后进行，字符串拷贝。
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