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And even more fundamentally than that, before we get too far down the road of fixing certain problems, how do we do so before we actually identify what those problems are,"
VOA: standard.2009.03.26
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In bridge building we're well advanced in understanding what are the problems with building bridges and how do we overcome them?
在桥梁建设中我们十分清楚地了解,在造桥的过程中会遇到什么问题,以及如何克服这些问题
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And sometimes what we do, what we want to do is have them solve problems before problems get to be too big.
所以我们做的这些，就是为了在问题发生之前就解决了。
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So that you will come away with a sense of what you can do, what you can't do, and what kinds of things you should use to tackle complex problems.
因此你们才能对,你们能做的事儿，不能做的事儿,和用何方法去,解决棘手问题有一个基本概念。
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What do they do? One of the problems that it produces is the more people you have, up to a point that's good.
他们都干些什么呢,其中一个问题是,人越多,产出就越大,这在达到临界点之前是好事
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These are problems that look a lot like what you might have to do during their weekly assignment if you were a student in this course.
讲的那些问题,基本上是,如果你上那个课,会遇到的周作业的类型。
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What does it require to be a successful mechanic, to do all the mechanics problems?
怎么才能当个成功的力学家,并能解决所有的力学问题呢
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and I enjoy, like, solving proofs or, like, solving problems, but it's only one part of like, what I do, like as a person.
做证明题或者解决问题对我来说是一种享受，但这只是我生活的一部分而已。
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The other thing I want to let you know is that instead of having a new problem-set that you'll be assigned this Friday, what we'll do instead is we'll give you some practice problems, and these will be just more of the same type of problems that you saw before but that's another chance to try them out more.
另外一件我想要告诉大家的是,这周五将不会像往常一样,给大家布置新的作业,而是给你们一些练习题，这些题目只是另一些跟原来同样类型的习题,你们应该都已经见过类似的,但这是尝试再次解决这类题目的机会。
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Odds are if you're an upperclassman, you've had that experience where it's 12 AM, 1 AM, 2 AM, and you're really starting to stress over the incompletion of some problems that for some course, well frankly what this mechanism allows you to do if you're already 90 percent of the way there, you can call it a night and you can put it down and you could feel good nonetheless about where you got to.
对于上游的同学可能觉得无趣，因为他已经具备了这些经验，这时应该开始关注某些课程中,问题的不完整的部分，如果你已经学会了,里面90%的知识，你可以停工,或者把这门课扔到一边。
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One of the things we want to help you do is identify the different classes of algorithms, what their costs are, and how you can map problems into the most efficient class to do the computation.
我们想要教会你们的事情之一就是,学会辨别不同种类的算法，它们的代价是怎么样的，以及怎么样把问题映射到,最有效的算法种类中去做计算。
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In a help session what he might do typically is solve between four and eight problems that illustrate the key principle being talked that week.
在帮助课程中他一般会,解决4到8个问题,来阐明那一周教的关键原理。
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One of the things you should begin to do, is to recognize what identifies those classes of algorithms, so you can map your problems into those ranges.
你们现在开始要做的事情之一，就是要学会辨别这些算法,这样你就能为你的问题，选择对应种类的算法了。
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