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I'm not going to have you work long hours on difficult problems to be submitted and then graded.
我的作业不会让你们花费大量的时间,去钻研很难的问题，然后交上来让我打分。
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Hmm, that's a tricky question.
这是个很难回答的问题。
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Part of the problem with using operant conditioning with babies is it's difficult to get them to behave in any systematic way.
应用操作性条件作用的部分问题在于,很难使婴儿们按照系统的方式行动
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For a couple of reasons. In some ways, this would be nicer, do expected cases, it's going to tell you on average how much you expect to take, but it tends to be hard to compute, because to compute that, you have to know a distribution on input.
关注最快的情况，在某种意义上来说，因为一些原因这样想挺不错的，当我们处理一个给定的问题,计算平均时间的时候,是很难计算的，因为你并不知道输入的分布情况,这些输入会是怎么样的呢？
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If you haven't looked at the homework problems, you might have difficulty with the homework quiz.
但如果你没有看过作业的问题，这个测试则将会很难。
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One of the reasons for thinking it's not clear whether the argument fails or not is because it's hard to pin down, where exactly did it go wrong?
并不能确定这个论证是否成立,的其中一个原因就是,我们很难确定,到底是哪里出了问题
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That's a complicated thing that accountants figure out and accountants find it difficult to define the earnings of a company, but they do something and they come up with a number.
会计们会计算这个复杂的问题,他们还会发现公司收益很难定义,但是他们会想办法,得出一个数字
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Some of these are difficult.
其中一些问题很难
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just being able to keep saying from a person's perspective which is very hard to see when you get very tense and very defensive. And it's just so good for me to have have someone like Saed especially with Saed personally, just to have that gate.
就是能够,从一个个人的角度聊问题,而如果你很紧张就很难做到这一点,很有戒备心的时候就很难，所以我能够,有Saed是非？牡？,有这扇门。
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And of course the all important question even though political philosophers and political scientists rarely pronounce it ? namely quid sit deus what is God? Does he exist?
当然还有最重要的问题,就算是政治哲学家和,政治科学家都很难做出判断的问题,即quid，sit，deus？上帝是啥？祂存在吗？
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That's a lot harder of a problem to solve if you need to reconstruct the fragmentation, yeah.
如果你需要重构这些碎片,会有很多很难的问题等着我们。
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But finally, Reiner says, well, thank you for visiting us, it's all very wonderful, but you know our audience would really like to know; it seems like a simple question but it's awfully hard to understand, but how can a great, big, enormous, heavy thing like this airplane get off the ground?
但最后 雷纳说到,谢谢你的来访,太棒了,但你知道吗,我们的观众非常想知道,这问题貌似简单,但却很难让人明白,问题是,像这么一个巨大且沉重的飞机,是如何飞起来的呢
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Well, that's a hard question.
这是个很难回答的问题。
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An accent is very hard to shake and it's not just an accent.
口音很难改掉,而且问题还不止是口音
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Everyone can solve it, but this question is hard.
大家都能够回答,但这个问题却很难
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So we've looked at how to solve square root we've, looked at two problems, I've tried to instill in you this sense of paranoia which is so valuable, and now we're going to pull back Python and return to something much simpler than numbers, and that's Python. All right?
我们已经研究了如何去求平方根,研究了两种方法,我一直在尝试着给你们逐渐灌输,要偏执的理念，这样的理念非常有价值，现在我们回过头来去学习一些,比数字更简单的东西，也就是,对不对？数学问题很难？
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Like algorithmic complexity.
是很难被归类到编程问题里面的。
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Freud's--Freud was very focused on the family life of the people he interacted with, which is rather upper class Europeans, and these sort of questions would have been difficult for Freud to answer.
弗洛伊德非常关注,与他接触之人的家庭生活，也就是一些欧洲的贵族们，对于这类问题,相信弗洛伊德本人也很难作答。
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The answer is I can't. OK, in the simple case of integers I can, but in the case of something more complex like faces or fingerprints or passwords for that matter, it's hard to design a hash function that has completely even distribution, meaning that it takes any input into exactly one output spot.
答案是我不能，好吧,在简单的整数的例子中,我可以做到，但是在一些更复杂的场景中,比如面部，指纹，密码相关的问题中，很难设计一个哈希函数具备完全平均的分配,也就是说，做到对任一输入，可以准确地得到相应的唯一输出,因此在一个哈希问题中。
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