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So in a sense it tells you this work of art is of a piece with what you already know; it's familiar in those ways, and you shouldn't be afraid of it.
在某种程度上,这告诉了你这件艺术作品,其实是你早已认识的东西;,你已经通过那些方式了解了它，不用怕它。
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You have to have at least, I don't know, cereal or maybe a piece of fruit?
你至少得吃点，我不知道，也许吃点麦片或者吃块水果吧。
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So you can imagine, we actually don't need to think of it as a piece of gold foil it might be easier to think of it as a couple of layers of atoms.
所以可以想象,我们不用把它当成一片金箔,只要把它当成是几层原子,所以他所作的就是。
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I don't know that I have an answer to this, but perhaps the Republic as a whole is itself a piece of this Socratic poetry that will substitute for the Homeric kind.
我不确定我对这有预备答案，但也许整部《理想国》,就是一部苏老式的诗学,用以取代荷马史诗。
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What is this? This is a wonderful piece of abstraction. It is saying, you don't need to know squat about what's inside the body of this function. You don't have to worry about the parameter names, because they're going to be preserved, you don't need to worry about how I'm doing it, this tells you how you can use this, in order to use it correctly. Of course, I can then close it off, and off we go.
但是这能告诉你一些信息,这是什么？,这是一段完美的抽象,它的意思是你不需要知道,这个函数的内部构造，你不必担心参数是否重名，因为它们已经被预存了,你不需要担心我如何使用它,它告诉了你你该如何操作，从而正确的使用它，当然我也可以把它关掉。
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Right. So similarly, if you've got one line of code with a semicolon at the end saying, this is the end of the statement, it doesn't really make sense to continue that conversation to try to continue conceptually that puzzle piece with curly braces.
对的，类似的，如果你得到了一行代码,后面有一个分号，标志语句的结尾,这就没有意义来继续,那个会话来尝试对那段代码,使用花括号。
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Look it's just a piece of plastic, it doesn't know a thing.
这只是片塑料。
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Let's say I went to play a piece music Now I didn't think about that.
假如我弹了一段曲子,但我之前没有听过
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If you don't have this piece of paper and you want to participate, please raise your hand and one of the teaching fellows will bring it to you.
如果你没有这张纸，而又想参加测试的话，请举起手，让教学助理,拿给你。
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We can't say,they both have a piece.
我们不能说他们都拥有一部分。
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And I don't know, it's kind of just like a little piece of that
我也说不上来，总是觉得有点儿那个时代的感觉
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Maybe you don't need the whole virus, but you could just use a piece of the virus,right?
也许你并不需要完整的病毒,你只需使用病毒的一部分
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So that's the piece of the syllabus that I can't tell you about.
这就是教学大纲没能告诉大家的。
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What we're really doing, or I shouldn't say what we're really doing, a basic piece of what we're doing, when we talk about classes or objects, is we're doing something that Professor Guttag mentioned, we're defining an abstract data type.
或者我不应该，说我们真正要做的，当我谈到类或者对象的时候，我们在做的基本的东西，如Guttag教授提到的,就是定义一个抽象数据类型，那么这到底是什么意思呢？
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All right. If you flip to the second side of your handout, you'll see that I have a piece of code there, that does this-- let me, ah, I didn't want to do that, let me back up slightly- this is the algorithm called search.
你可以看到实现这个功能的代码,让我，额，我不想这么做,让我们回来一点,这就是命名为search的算法-,我们来看看这个算法吧。
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It can do all sorts of things a piece of chalk can't do.
它能干一堆粉笔干不了的事
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As an aside, if you ever just have one line of code that you want to execute, one puzzle piece in Scratch terminology, ; you actually don't need the curly braces; you only need the curly braces if you have two or more lines of code that you want to execute if that condition is true.
此外，如果你只有一行代码,需要执行，在Scratch，术语中叫做,一句代码，你就不需要使用花括号了;,如果那个条件成立，你有两行或更多行的代码时需要执行时,你就需要花括号。
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That cells that form tissues often have junctions that hold them together so that they don't fall apart and they exist as a solid piece of tissue.
组织细胞通常通过,细胞连接而联系在一起,所以它们不会分散开来,而保持坚固的组织形态
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But of course, as we know and thinking about familiar objects, we don't need to have every single piece of an object, of an identity stay the same to have the same feeling.So-- I think previously I talked about the steering wheel on my car.
但很明显的,根据我们的常识，我们不需要要求,所有的物体，都保持不变,从而得到同一个肉体-,我记得我之前讨论过,我的汽车的方向盘。
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But notice what this does. The first thing it does is, it says, let's check and make sure x is greater than or equal to 0. If it isn't, notice what's going to happen. None of that block is going to get executed, and it's going to come down here and print out a useful piece of information, which says, hey, you gave me a negative number. I don't know how to do this.
做的是和以前一样的事情,但是注释它做了什么，第一件做的事情就是,程序说，要去检查并且确信x是大于等于0的，如果不是的话，请注意会发生什么,下面的代码都不会被执行,程序会到这里来然后显示一些有用的信息,信息会说，嘿，你给了我一个负数,我不知道该怎么弄这个了。
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Like in popular music there's often a couple of verses and a chorus and a bridge and you can predict each different movement of the piece, and that's more regular than-- Couldn't say it better myself.
就像在流行音乐中有很多的曲段，副歌,和过渡乐节，这样你就可以预测到音乐的每一个变化，这样就比别的要规则-,光我一个人不好说太细。
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And odds are if a week hence, two weeks hence just for fun you decide to reimplement your Scratch project -- or some tiny piece of it, it wouldn't be surprising -- or shouldn't be -- if you end of implementing the same game or animation or whatever using a completely different set of puzzle pieces Same deal we'd see here.
可能一周之后，两周之后，为了好玩,你决定重新实现你的Scrtch工程,或者其中一小部分，它将不会是令人惊讶的-,本来也不应该是--如果你运行相同的游戏,或者是动画，亦或是用完全不同的设置,来运行拼图游戏,我们将看到相同的处理。
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- So now if Christiana doesn't actually -- if either programmer or who's programming these little puzzle pieces, don't actually do anything with this return value, and I call, get int, she wants to hand this piece of paper -- to me, but if I don't actually assign -- no, no, I just messed up the demo.
现在如果Christiana没有-,如果程序员或谁在编写这段代码,不要对这个返回值做任何事情，我调用GetInt，她把这张纸给我,但是如果我没有赋值-,不，不，我刚才把这个演示搞乱了。
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