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On second thought I do like to brag 'Cause I'm mighty proud of That Ragged Old Flag."
VOA: special.2010.07.02
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But it grows pretty rapidly, as n goes up, and I'm going to show you an example in a second.
解决问题需要的时间会急剧增长，一会儿我会让大家看个例子的,我想大家注意的还是。
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and then an intensive course. Now I'm in my second year.
然后上了密集课程。现在我是大二了。
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I'm Shirley Griffith. Listen again next week to the second part of the story of the Mercury program that took the first American astronauts into space.
VOA: special.2009.06.10
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I'm going to repeat this a second time, because it's important. These local bindings do not affect any global bindings.
因为这非常重要，这些本地绑定,并不影响全局绑定。
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As I said earlier, that's an action plan, I'm certainly not going to second guess there are many action plan.
就像我刚才所说，这是一个行动计划，我当然不会去质疑这项计划，虽然说我们已经有很多的行动，计划。
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But what I'm assigning to you is the second edition, which came out in 2005, pretty much at the peak of the housing market.
但是我指定你们去读的,是2005年出的第二版,那时候房地产市场正位于高点
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But this happens to be completely legitimate, so I'm going to assume it's true and I'll maybe take a second explaination why it's legitimate.
但这里所说的情况是完全合理的,所以我先假设这是对的,待会儿再进一步解释为什么合理
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I'm sixty-four years old and I haven't had one second of genius in my entire life.
我已经六十四岁了,这辈子都没有哪怕一秒钟灵光乍现的时候
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So if we differentiate this object, I'm gonna find a first order condition in a second.
想要求它的导数,先让我想想一阶条件
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I'm leaning to the second one... You're leaning toward the second one.
我比较倾向第二个说法。,你倾向第二个说法。
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But really, the computer's just so fast I'm drawing the same string with just a slightly different number again and again after going to sleep one second at a time.
但是真实地，这个计算机到现在为止,我一次又一次用稍微不同的数字,绘画了相同的字符串,在睡眠1秒钟之后。
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The reason I'm going to show you this flow chart, I'm going to do one other example in a second, but I want to show you a comparison.
我稍后还会给大家讲另外一个例子，我给大家看这个流程图的原因，是我想给大家一个对比。
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I'm thinking about a problem, I'm going to show you an example in a second, first thing I'm going to do is say, what is the thing that's going to change every time I run through the same set of code?
我要解决一个问题，我马上会让大家看一个例子，第一件我要做的事情就是,弄明白每次运行同样的指令集时,每次都会改变的东西是什么？
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I'm going to add to it in a second, but I want to build up to this.
关键词“类“在这里，然后我要命名这个类。
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And secondly, if I'm successful in my teaching I will accomplish this second aim here.
第二,如果我的教学目的达到了,我就会实现第二个目标
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The second class is the most popular application of what I'm doing now.
第二类的问题是我现在所做的最常见的应用
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OK. Now, having said that, and I've actually got a subtlety I'm going to come back to in a second, there ought to be a better way to do this. OK?
我们已经明白了一些，一会儿要讲的微妙之处,应该有更好的方法对不对？,应该有更好的思路的？
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And I'm going to show you an example in a 1 second, just to drive this home, but notice the characteristics. In the first two cases, the problem reduced by 1 at each step.
在前面两个例子里,每一部问题的规模缩小了,不管是迭代的还是递归的，这表明这个问题的复杂性可能是线性的。
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I want to abstract that. And the abstraction you see, right here. I'm going to highlight it for a second so you can see it. I want you to look at it on the handout as well.
我需要进行抽象,这个抽象就在这儿,我把它强调给你们看看,我希望你也能看看讲义里的这部分内容。
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Need to get the base in. Second thing I want to do, I need to get the height, so I'm going to input a value for the height, also as a float, a floating point.
也就是输入底的值，第二件我想要做的，事情就是得到三角形的高,因此我会输入一个值作为三角形的高，同样也是一个浮点数。
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It's a good sign that this is logarithmic, and I'm going to come back in a second to why logs are a great thing.
为什么对数级复杂度是个好事情，让我们再来看一个算法,噢，抱歉是让我们再来看两个算法。
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Now let me do it a second time to show you that -- I'm saying this poorly.
还不至于如此呢,现在让我再做一次给你们看。
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Thank you. Hold on to that thought for second, I'm going to come back to it.
我再来回到问题上，并不是假定我在搜索。
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So I'm going to now do a second class of problems.
现在我要开始讨论另一类问题
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Rather then drawing two different tables like this, what I'm going to do is I'm going to take the second table and super-impose it on top of the first table.
与其画两个不同的表格,不如把第二个表格的内容插入到,第一个表中
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So I'm going to use this row, I think, everyone in this row stand up a second, and this row stand up, this is the row of potential voters.
就选这排吧,这排的同学站起来一下,这排站起来,这排是潜在选民
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You try to design actually I'm going to come back to that in a second. It's like you're trying to use a hash function that spread things out pretty evenly. But the places you store into in those lists may have to themselves have a small list in there, and when you go to check something, you may have to do a linear search through the elements in that list.
你尝试着去设计,实际上过会儿我会回头讲解这个问题,类似于你需要用一个哈希函数,非常平均的将物体分发出去,但是在列表中你数据,映射到的地方可能会有自己的一小段列表，当你回头查找数据的时候,你可能需要在那一小段列表中做线性查找。
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Meaning, I'm just going to write a little loop that does that. All right, so let's go back to our code. That's right, let me pull this over a little bit, so I can see it. And what I'd like you to look at, I'm going to highlight it just for a second here, is those two pieces of code.
意思就是我只需,写一个小循环就可以了,让我们回到代码,让我们向下拉一点,我才看得见,我希望你看看这里。
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The oboe may have the seventh partial very strong and the third partial very strong whereas the trumpet-- I'm just making all of this up of course-- the trumpet may have the second partial and the fourth partial and the sixth partial.
双簧管的第七泛音,和第三泛音都很强,而小号,我只是为上课需要假设的,小号可能是第二泛音,第四和第六泛音比较强
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