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So we'll take h 2 and we'll run -- or actually we'll have h 2 filled in an evacuated glass tube.
我们马上就会在氢原子上试一试,我们用氢气-我们把玻璃管充满氢气。
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I think with all the media we have available today is definitely good to kind of use that as a tool if you can.
我觉得，如果你会用的话，我们现今可用的媒体绝对是个不错的工具。
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We had no idea what was going on with the system, with how people were using it. We were making guesses.
我们不知道这个系统会怎么样，也不知道人们用得怎么样，我们只是在猜测。
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And the idea is that when you do these Lewis dot structures, we're representing electrons with dots, which we'll see in a minute, and each dot is going to represent a valence electron.
而当你遇到这些路易斯点结构时，我们会将电子用点来表示，我们马上就会看到，每个点都代表了一个价电子。
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And for reference, incidentally, in case you ever forget what the point of some exercise was, I'll almost always comment the code up top with a quick sentence or two that reminds you what this program does.
顺便作为参考，为了避免我们可能忘记一些代码的意思，我通常会用一两个简单的句子,在上面作出注释,那样会提醒我们这个程序是干嘛的。
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We could begin to put a certain amount of pressure on the text and possibly, as I say, - begin to do things with it which are kind of a five-finger exercise-- -- we'll be doing a lot more of that sort of thing--but which might work.
开始时我们应该对文本抱有一定的怀疑,就像我说的，用一种五指练习法来做-,以后我们会大量涉及到这种练习。
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Now you might wonder, why do we have dictionaries?
现在你们可能会有疑惑了，我们用字典来干什么呢？
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We'll devote a whole class to that down the road just a bit.
我们会用一整节课来简单讨论这个问题
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We tend to use the term to refer to information we have about categories and intuitions we have about the typicality, our frequency of certain features of categories.
我们会用这个词来代表,我们对某些类别掌握的信息,用它来指代我们掌握典型性的直觉，指代某个类别反复出现的特性。
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We want to be more--a bit more sophisticated than that, if you will, and use other terms, so we'll talk generally about Beethoven's composition or Beethoven's piece or Beethoven's work or his master work or chef d'oeuvre or however fancy you want to get with it.
我们想用些更精确的词藻,用其他措辞表现,我们一般会说贝多芬的音乐创作,或贝多芬的乐章,贝多芬的乐曲,他的杰作,或名曲,或是任何你想到的花哨词汇称呼它
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So this isn't the most useful form that we can have, but what we'll see shortly is that from this, we can then derive further criteria for essentially any set of variables or any set of external constraints, like constant temperature or pressure or volume and so forth that we might set.
所以这不是我们所能得到的最有用的形式，但是我们会很快看到，我们能够进一步推导出包含任意变量,或者任意约束的自发过程判断标准，比如说恒定的温度，压强,体积或者其他我们能够给出的约束。
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the word "Jew" isn't something we can really historically use until about this time , so most of our period we're going to be talking about the ancient Israelites to become an Israelite, you simply joined the Israelite community, you lived an Israelite life, you died an Israelite death.
关于Jew这词历史上,直到公元前500年才开始用，所以我们的大多数时间,将会讨论古以色列人,成为一个以色列人，你只要加入以色列人社区，按以色列人方式生活，按其方式安葬。
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and we kind of expect everyone else to speak English for us.
所以我们也会希望人们会用英语跟我们交流。
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Our friend Schr?dinger told us that if you solve for the wave function, this is what the probability densities look like.
我们的朋友薛定谔告诉我们,如果你用波函数来解决，你就会知道这些概率密度看上去的样子。
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In class we'll have more data to present to you and we'll be eager to talk about some of the ways that people will be using the site and what the potential impact will be.
课堂上将会呈现更多的数据,我们渴望谈论,人们用这个网站的方法,以及潜在的影响。
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Now you might ask, well if we did 360 here, why don't we just do 360 over here?
你们可能会问,既然我们这里用360,那么那里为什么不用360
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This is our row and at the count of three we're going to see who's going to run.
我们用这排,数到三的时候,我们来看一下谁会参选
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We'll be using the solutions, so you shouldn't have a problem, but I wanted to point it out so it does not look too strange to you.
我们将会用它的解，所以你们不应该问题，但是我想提出它,这样你们就不会对它太陌生。
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We're going to really get into this next class, but I just want to introduce it to you to give us a start, and many of you have used Lewis structures in high school, but we'll be doing some much more challenging Lewis structures, I can assure you, in this class here.
其实我们下节课才会详细介绍它，但是今天我只想以简单介绍作为开始，大部分同学在高中就用过路易斯结构了，但是我们会遇到一些更具挑战性的,路易斯结构，我可以向大家保证，在这门课中会的。
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So what happens is, Freud described a lot of normal life in terms of different ways we use to keep that horrible stuff from the id making its way to consciousness.
弗洛伊德描述了，很多我们会在日常生活中使用的方法,我们用这些方法,来阻止来自本我的原始欲望,进入到意识之中。
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One way to think about it, if we want to use a classical analogy, which often helps to give us an idea of what's going on, is the spin of an electron, we can picture it rotating on its own axis.
如果我们用一个，经典的比喻来考虑它的话，这经常会帮助我们建立起一些概念，就是我们可以把电子的，自旋想象是它绕着轴自转。
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And thankfully with 64-bit values can we do so, but sure enough will we run out of space, even with those types of types.
幸亏有64位的数值，我们才能做到如此，但是我们的空间真的会用完，即使有这样的数据类型。
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These topics are sleep, laughter, and religion, mental illness, two lectures on madness, what can go wrong in your minds, and a last lecture on happiness.
这些话题包括,睡眠，笑，宗教，精神疾病，我们会用两节课讲精神病，也就是你的脑子会出什么毛病，最后一节课讲幸福。
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Well,what I'd like to do now is move here to a couple of additional pieces, and we're going to use an example of pop music now with a three-chord chord progression.
那么，我们现在要做的是再看其他一些音乐，然后我们会用流行音乐的例子来看看三和弦进行。
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We'll talk about the amount of money that goes into Washington to lobby on behalf of the food industry, and we'll use a few exemplars of that like the National Restaurant Association which is the major trade association, as you might guess, of the restaurant industry.
我们会讲到以食品工业的名义,游说华盛顿政府支付的资金,我们会用一些例子,比如国际酒店联盟这样主要的商业联盟,如你们所想,在饭店行业中
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And when we talk about intensity in terms of units, we usually talk about watts, so if you change your lightbulb, usually you see the intensity in terms of watts.
当我们讨论强度的单位时，我们经常用瓦特，所以如果你更换灯泡，你通常会看到,以瓦特为单位的强度值。
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We have these adjectives up here, "Negative," "Anxious," "Unsettled."
我们会用些形容词,像是消极的,焦虑的,怀疑的
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Where--One of the big findings from social psychology, and we'll devote almost an entire lecture to this, that people have strong views about other races that they don't know about and that they don't know how to control their actions.
我们将来几乎会用一堂课的时间，来介绍一个社会心理学的重大发现，人们对其他的民族有极深的成见,但这些成见往往是他们自己无法察觉的,也是他们不知道该如何去控制的。
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So, with that said, we like to Google ourselves sometimes FlyBy and so we discovered that FlyBy last night mentioned CS50 among some other courses in its last minute shopping list.
如此说来，我们有时候会喜欢用Google搜索,然后我们发现昨晚在CS50的其他课程上提到的,在最后一分钟的购物清单里。
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So you might ask well, why are we using this model if it clearly doesn't take into account quantum mechanics?
那么大家可能会问为什么我们要用这个,显然没有考虑量子力学的模型呢？
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