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It gives you a lot of expressive convenience, you can write the programs much more cleanly, but most importantly, it's fast.
你可以把一些程序写的更清楚，最重要的是，它的效率非常高。
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that's connected to a person, place or situation or even thing that you're making a comparison with.
它可以把你做比较的人物、地点或情况联系起来。
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You can take heat energy and convert it to work energy and vice versa, and it doesn't say anything about that you have to waste heat if you're going to transform heat into work.
你可以把热能便成功,也可以反过来,但它对于如果你要把热变成功,就必须浪费热量这件事只字未提,它只是说这是能量。
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The advantage of introducing that guy is that if you like, I can now write an equation for the acceleration as a vector.
引入它的好处是,如果你愿意的话,我可以把加速度写成矢量形式
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X Y Z It's more interestingly named an X or Y or Z.
你也可以把它命名为。
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There could be familiar things that you are close to and you could bring in together new things as falling under the rubric of these familiar things.
利用你熟悉的事物,和你很亲近的事物,当你引出一个新事物时,你可以把它放在你熟悉的事物的范畴下。
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Except,I mean,you could use it, but not use it as authoritative.
我的意思是你可以使用它，但不要把它当作权威。
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px And I arbitrarily chose to put it in the 2 p x, 2pz we also could have put it in the 2 p y or the 2 p z, it doesn't matter where you double up, they're all the same energy.
我任意地选择放入至，我们也可以把它放入2py或，它与你在哪双倍填充没有关系，它们都在相同的能级。
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and you can just take it away and walk around the market. And it's only 5 pounds.
你可以把它打包带走，然后逛逛市集。这只要五英镑。
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If you want to, you could think of this class as one big hypothetical.
如果你想，你可以把它想象成一个大的假设。
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You can throw it away going out.
你甚至可以把它扔掉
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You will be--you are entitled to receiving the dividends that are paid out of earnings for the rest of your life and you can give it to your children and maybe in two hundred years from now it'll be worth a lot; probably not, but it might be.
你此后会一直收到,从收益中分出来的股利,你可以把它给你的孩子,也许200年后会变得非常值钱,也可能不值钱,但还是可能值钱的
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I like to make a lot of stews in the winter that you can like then freeze, or beans and things like that, soups.
冬天我喜欢炖汤，比如你可以，把它冷冻起来，或者用大豆之类的东西做汤。
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And you could think of this you could think of this belief as the belief that rationalizes that choice.
你可以把它看成,你可以把这个信念,理解成让你的策略合理化的理由
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It's like a moveable feast; you put your explosion where you need it at any particular moment.
它就像一个万能贴,你可以把火山爆发,置于你所需要的特定时刻
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where you can take one of them, put it back in a different place,
你可以从中租一辆用，然后把它放回到不同的位置，
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If you had your notes, you could do some fun scribbling right now, so you can do that at home.
如果你们在笔记上记了这个，你可以把它完全划掉，或者回家后划掉。
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You can kind of see where the syntax is going, looks like a loop, but you can kind of put blocks inside of you, and the little arrow suggests that once you get to the bottom just like our socks example, you're gonna do the following again.
从某种程度上你可以看到它的语法构成,像个循环，你也可以把，一些程序块放到循环中，如同短袜的例子，这个小箭头暗示你一旦到达底部,你将会重复接下来的事情。
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c point You can see inside of it, it's got a set of definitions for things like functions.
我会把它简短的命名为，你可以看到类的里面,有一个对于函数之类的东西的定义集。
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So, when you see this object over here you categorize it as a chair and you recognize that you could probably sit on it.
当你看到这边的这件物体,你就把它划到椅子的类别下,然后你就知道你可以坐上去。
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Of course, that's not the useful application for it, it's more of a proof of principle, but it does show you that you can put it in for studies in any organisms.
当然，这不是很有用的应用，这仅仅是一个原理上的证明，但它告诉你你可以把它,放到研究任何生物体中。
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And we can simplify this expression as saying negative e squared over 4 pi, epsilon nought r squared. Epsilon nought is a constant, it's something you might see in physics as well.
也会遇到它,在这里，你可以就把它,理解为一个转换系数,我们需要做的。
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Right now, you've got to write it in one file.
现在，你可以把它写在一个文件里。
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Well, you can use what's called an array which is kind of a list or a little satchel of that you might physically carry that you can put things in again and again, and with an array can you actually keep track of not just numbers but any kinds of things, other sprites or other pictures, or perhaps a little something like this.
你可以使用数组,它其实是个列表,或者说是个小包,你可以把东西一个个放到里面，通过数组你可以保存任何种类的变量,图片或者像，这个例子中的一些小变量，而不仅仅是数字。
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So that means if you-- whether you own a Mac, PC or whatever, you have a whole chunk of RAM memory which you can draw for instance as a rectangle, if you can't quite see.
也就是说，无论你的电脑是Mac也好，PC也好或其他什么的，你会有厚厚一块RAM存储器,我们可以把它画成长方形，你们有可能看不到。
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You might put it this way as sort of the easiest version of this kind of argument, for our purposes.
你也可以把它当作,这种论证的最简解释方式,以便于理解
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You know, if you want to measure the potential energy of something in a gravitational field, you have to define the zero somewhere, right, because it's arbitrary. You can set it anywhere you want. It's the same with enthalpy.
你知道，如果你想测量重力场,中某种东西的势能，你需要，在某处定义一个零点，对吧？,因为势能的值是任意的,你可以把它设定在。
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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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Once you've got that, one derivative will give you the velocity, then in a crunch you can eliminate t and put it into this formula.
一旦你得到了这个,求一阶导数就能得到速度,然后你可以消去t,把它代入这个式子
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