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And the first thing you do is ask is it an instance of some problem that other people have already solved?
而且你以前从没碰过这个问题,你首先要做的一件事就是问问自己,这是不是一个别人已经解决了的问题？
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I've been taking the train for the past, say, give and(or) take six years and I've always loved it.
我以前一直坐火车，大约6年里都乘坐它，我一直很喜欢它。
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As every time we introduce a new programming concept, we'll relate it back, as we have been doing consistently, to defensive programming.
我们每次介绍一个,新的编程概念的时候，就会和以前讲的联系起来，就和我们介绍防卫性程序设计一样。
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I had not really had a conversation with a person who was out as lesbian or gay before I was in college.
在上大学以前,我从未真正地和一个,出柜的同性恋谈过话。
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As I've suggested before, his more conservative contemporaries were appalled by the proliferation of religious sects in mid-seventeenth-century England.
这如我以前所说，他的保守的同辈人,因17世纪中期英格兰迅速增多,的宗教派系而惊恐。
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And we can calculate that with the formula that we used, which was just n minus l minus 1 equals the number of nodes.
这个我们可以用我们以前用过的那个公式来计算，也就是节点数等于ｎ减去ｌ减去１
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You move out to someplace that nobody bothered to farm before, because it wasn't profitable enough, because you need more land.
你搬到一块以前没人耕作过的土地上,因为它并不是那么有利可图,但是你需要更多的土地
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And, of course, there's this-- another acoustical phenomenon here we've talked about before, what's the relationship within an octave?
当然,就是这个,我们以前谈论过的,另一种声学现象,八度的内部联系是什么呢
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In contrast today, because we have antibiotics and we have vaccines, people don't die of infectious diseases as often.
相反,在现在,因为我们有了抗生素和疫苗,死于感染性疾病的人就不像以前那么多
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It isn't the Red Sea. That's a mistranslation that occurred very very early on, so it's led to the notion that they were at the Gulf of Aqaba or somewhere near the actual big ocean water.
并不是红海，这个错误的翻译很早以前就存在了,让人们以为是在亚喀巴湾,或者是接近真正意义的大洋的什么地方。
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A few months ago, some former students of mine -former colleagues of mine -gave this very nice party at the Yale Club.
数月前,我以前的一些学生,还有以前的同事,在耶鲁俱乐部举办了一次精彩的派对
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This second chimpanzee is not a relative of the first chimpanzee and they've never seen each other before.
这只黑猩猩跟第一只黑猩猩,没有血缘关系,它们以前也从来没见过面。
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So it's not just a question of the past, as I say and as I've said before.
正如我以前说过的，它不只是过去的问题。
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By the way, how many of you are Poly Sci majors who have seen this model before?
顺便问下,你们这些政治学专业的学生中,有谁以前听过这个模型吗
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And the first crack was a movie that's so long that it used to be the janitors, the people who cleaned these-- the very nice people who cleaned these rooms used to call it a two six-pack movie because it was so long.
第一个漏洞是一部特别长的电影,以前那个楼管,打扫卫生的,给这些教师打扫卫生的优秀工作者,以前管它叫一打啤酒电影因为太长了
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So it's true. Before, it was like a butcher place where they cut the cows and pigs and everything.
是这样的。以前它像个杀牛、猪等动物的屠宰场。
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They have a very high respect for a criminal Jew, who led some kind of guerilla war and was executed long ago, somewhere in Syria.
他们非常尊敬一名犹太罪犯，他指挥了某种游击战，很久以前被处死了，就在叙利亚某处。
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Over the last couple of years, we can get reasonable measurements of human activities that were hidden from us.
在过去的几年中，人类能够通过适当的方式去测量人的大脑,在以前我们根本无法做到。
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We don't pay attention to them when they are going beyond three, but now we know we need that.
我们以前并没关注他们,对三维以上空间的研究,但是现在我们知道也需要关注那些东西
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And by the time I'm a million and a half, I no longer remember what was happening in oh, back, back.
等我活到150万年，我不记得,很久以前做过什么。
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For instance in the past, we had that silly little program for computing the average of some quizzes and it was actually a pretty bad implementation because I had essentially hard coded in the number of quizzes.
比如在以前，我们做了一个,计算平均数的程序,这是一个相当挫的实现,因为我硬编码了测试的数字。
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He wore an old double-breasted suit, frayed gray shirt, wide tie, no hat "I left her so long ago I don't remember.
他穿着一件双排扣的旧大衣，一件散口的灰衬衫，和一条宽领带，没有戴帽子，“我很早以前就离开了她。
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We've known since antiquity that you could take gold, and you can hammer to very, very thin foil.
我们已经知道很久以前，人们就能用锤子把金敲成非常非常薄的箔片。
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OK, now that I've got that, we could think about what would I want to do with these points?
我也可以像以前那样，对它们进行赋值操作,好，现在我们已经有这些对象了？
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And I was on a bunch of different... and also different communities... But one of them was really my athletics.
恩，我以前参加过好多不同的。,社团活动。,但是体育方面的特长始终是核心。
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Up on the screen, I've got-- I commented it out, but I've got a piece of code that you've seen before, right up here. OK?
我现在在大屏幕上标出来的,是你们以前看过的一段代码,就在这儿？
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We're exposed to things that might cause cancer where weren't exposed to them before and so that might be a reason.
我们暴露于可能致癌的物质中,这些物质在以前是没有的,这可能就是原因之一
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I mean, you may not understand it with algebra before but some of these sorts of pictures have you seen before?
我是说可能代数部分你没看懂,但你们以前见过类似的图像吧
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Well, this allows us to try to go back and explain some phenomena that over the years, mounting evidence was building that couldn't be explained.
好了，这个可以使得我们,返回去然后去解释一些，以前逐年积累的未能解释的现象,我们下节课将讨论。
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