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Quincy Jones and Lionel Richie co-produced the single, and,with a production team that included rappers Will.i.am, Kanye West and L.L.Cool J, a new music segment and lyrics were added.
VOA: standard.2010.02.18
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I added a paragraph to the body of the epilogue expanding this notion.
抱有幻想,并且，我在结尾部分。
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The last thing I want to point out to you is, I started out with this list. I haven't added anything to the list, right? I mean I've got a different kind of looping mechanism.
我们从这个列表开始，我没往这个列表上加任何东西对不对？,我的意思是我学会了一种不同种类的,循环机制，我想我得说。
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If I had a beaker sitting on the table here and it contained a million blue double stranded DNA molecules and a million red double stranded DNA molecules and I heated it up and added a little base, I'd soon have four million individual strands just floating around in the solution because I've broken up this hydrogen bonding and the DNA molecules fall apart.
假如我这里有一个烧杯 里面,盛有一百万条蓝色DNA双链和,一百万条红色DNA双链,然后我稍微加热一下烧杯,并且加一些碱,很快我就有了四百万条DNA单链,漂浮在溶液里,因为我已经使得氢键断裂,DNA双链也随之打开
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Roughly speaking, a sixth of the class are going to end up with A's, a sixth are going to end up with A-, a sixth are going to end up with B+, a sixth are going to end up with B, a sixth are going to end up with B-, and the remaining sixth, if I added that up right, are going to end up with what I guess we're now calling the presidential grade, is that right?
总体来说,六分之一的人会得到A,六分之一的人会得到A-,六分之一的人会得到B+,六分之一的人会得到B,六分之一的人会得到B-,剩下的六分之一,如果我没算错,这些人将会得到,传说中的"超优"成绩
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OK, so what have I done? I just added a little bit more now. I'm now running through a pair of loops. Again notice the encapsulation, that nice abstraction going on, which is what I want. Once I get to this stage though by the way, there might be more than one solution.
我现在运行了一对循环,再一次注意这个封装,抽象得很好，这就是我想要的结果,我按这种方式走到这一步的时候,可能会有多组答案。
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I've added the ability to have more complex data structures here. But I dropped a hint in the first lecture about what you could computer with things. In fact if you think for a second about that list, you could ask what can I compute with just that set of constructs?
我添加了使用更复杂的数据结构的能力,但是我在第一节课给大家了了一个,关于你可以用什么来做计算的暗示,实际上如果你思考,这个列表一会儿的话,你会问我可以用？
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The constraint has to change. I've added a constraint.
必须改变约束条件。
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I want to show you how easy it is to change the code. But, notice, once I've added this I actually have a problem. This is now an under-constrained problem. I have more unknowns than I have equations.
我加上这个条件后,我马上面临一个问题了,这就是现在是一个非约束性问题了,我的未知数比方程数多,你从代数中可以知道。
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Locally x got bound to 3, 3 I added 1 to it, whoop-dee-doo, 4 I get back a 4. But what's the value of x?
这是我想要的对吧？,在局部程序中x被赋值为，我给它加了1，我得到了？
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