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This is on purpose, because one of the things I hope you have learned to do this semester, is look up things you don't know, and figure out what they do. What they mean.
我举这个程序是有目的的，因为我希望你们这续期能学到,如何去查找你不知道的东西并，且弄懂它,们是干什么的，是什么意思。
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you sort of, I don't know, trivialize this, all the work that people put into it.
你可以，我不知道，看淡它，看淡当中人们做出的所有的努力。
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hi3 Whereas Hi3, I just created, it happens to live in this directory but my computer doesn't know that so you do dot slash which says current directory.
至于我刚刚创建的,它正好位于我电脑不知道的位置,所以你必须敲入，/，这代表当前目录。
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It says you gave me something I didn't know how to deal.
它的意思是你给了编译器一个,他不知道怎么处理的东西。
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Is art important enough to you that you'd be prepared to watch, look at a masterpiece, if you knew that while you were enjoying it you could die, ? but that wouldn't happen otherwise?
艺术有没有重要到,让你准备好去看，去欣赏一件杰作，如果你知道在欣赏它的时候可能会死，但如果不去欣赏就不会死？
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And then of course, there's the word sugar itself and then things like high fructose corn syrup, so there are a lot of ways that sugar gets put into foods and you wouldn't expect it to be there.
当然,还有糖本身这个词,还有像高果糖玉米糖浆这类东西,所以食品中含有很多形式的糖,而且你不知道它的存在
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If you assume that, you are not playing by the rule, we don't know what force it exerts.
如果你假定了,那你就犯规了,我们不知道它施加了多大的力
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And sometimes, you know, not knowing a word, it helps you learn it better
有时候，不知道一个单词，却能够帮助你更好地学习它，
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When you are not familiar with the tube system and how that works,
当你不熟悉地铁系统，不知道它如何运作的时候，
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and you do it through kind of a... I don't know what you'd call it, a website called UCAS.
你通过一个……我不知道你们怎么叫它，一个叫UCAS的网站申请。
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Unless you tell them what to do they're not gonna know how to do it.
除非你告诉它要做什么,它自己是不知道做什么的。
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> You don't know where to store it as one.
>，你不知道在哪里存储它。
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When we're just interacting with idol, with the interactive editor or sorry, interactive environment if you like, that's what you expect. What's happening is that we're typing in something, an expression it doesn't know how to deal. It's raising the exception, but is this simply bubbling up at the top level saying you've got a problem.
就发生了其中之一是吧，当你在交互数据处理或者是在交互编辑器，抱歉，任何你喜欢的交互式环境中，你可能会遇到这些，如果你在输入什么内容,譬如一个它不知道怎么处理的表达式,它就会报一个异常,但这是否是简单的,把你遇到的问题冒到最顶层呢？
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You cannot say, "I never heard of it. I don't know where it came from."
你就不能再说,"我从没听说过,我不知道它是怎么来的"
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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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R is going to be a fix number R times You don't know what it is right now.
等于一个常数 R 乘以,你现在还不知道它是多少
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Whether or not you believe it, you are familiar with the fact that some people believe it, or at least you wonder whether it's true.
不论你自己相信与否,毕竟,你知道有些人是相信的,最起码,你想知道它到底正不正确
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If you rotate it, you won't know.
如果它转动了,你也不知道
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