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you've got to get rid of the ritual impurity, so there'll have to be some ritual procedure that purges the impurity.
要摆脱不纯洁的仪式，将会有一些手段来净化不纯洁。
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Could you give some advice to students who are preparing to come to Brown?
对那些要来布朗大学读书的韩国学生，你有什么建议吗？
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I mean, there is an emptying out of positive meaning in the very awareness that, after all, the red light could mean "go" I'm about to go on and give more examples.
这就事我们不能主动赋予符号意义,但是是要认识到，红灯也有表示，出发，的意思“,我会用更多例子来说明它。
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If we build an engine for a car or anything else, it almost always is going to have some key element that's operating in a cycle, otherwise it won't keep going, right.
如果我们为一辆汽车，或其他什么东西制造一台引擎,它总要有一些关键，要素来形成循环。
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But remember that you do have recitation on Tuesday, so that could be very helpful with the problem-set, so be sure to go to recitation on Tuesday, and have a great long weekend.
记住，周二有习题课，这对做课后题很有帮助，所以周二一定要来上习题课，周末愉快！
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They came to draw water, ; and filled the troughs to water their father's flock; but shepherds came and drove them off.
她们来打水，打满了槽，要饮父亲的群羊;,有牧羊的人来，把她们赶走了。
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Why do you have four different chapters of this book, all telling the same story?
为什么一本书要有四个不同的章节，来讲述同一个故事？
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It's a bad habit to get into, because when you come back to it, it may haunt you later on down the road. So really get into that notion of trying to be defensive as you program.
来运行程序的时候,错误就会出现缠住你了,因此现在我们真的要培养,在程序中有防卫性设计的概念。
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And they also developed a very reliable way for introducing the virus, so that when they had a defined preparation of virus, then you want to make sure that everybody gets it in their skin in the right way.
他们还发明了一种可靠的方法来引入病毒,当人们有了确定的病毒制剂之后,就要要保证这些制剂都以正确的方式,注射至皮下
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Well you have to come with good humor, and that I hope you'll have; come to the lectures and do the reading, see the films, which I'll talk about in awhile, and go to sections, and hopefully participate in sections; and the sections tend to be fun in this course.
上课的时候要有幽默感,我希望你们有,来上课然后读文章看电影,我一会就讲这些,然后进行不同的章节,希望你们能充分参与其中,那些课程在这门课里还是比较有趣的
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Facebook It's that 70% of the people come back to the site everyday and making sure that that remains, not just because we're doing some gimmicky thing.
每天有70%的人来登录,并且要保持这一状态，靠得不是噱头和花招。
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I want you to come to lectures, so we have the two lectures each week that you'll come to.
我希望你们都能来听课,每周都有两次,你们要来参加
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Can you tell us a little bit about Outdoor Action and a little bit of how you came to this conversation, because we decide to collaborate on something.
你能否给我们简单介绍下这个项目,也谈一谈你为什么要来这个讲堂，我想我们一定会有一些共同点。
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All of that means we need to explain why these folks do what they end up doing, and we have some hints, but of course we do not know with any certainty or any confidence.
综上所述,我们来想想为什么这些人,要背井离乡呢,我们有一些线索,但是我们并没有有力的证据
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But if you're going to have a big old fort, and you're going to have lots of cannon that you hope to use against your craven, reptile enemies that would want to get in your way, you've got to have people to try out the cannon.
如果你想攻占一个大型的旧式堡垒,你必须要有很多大炮,来对付那些缩在城堡中的敌人,还需要很多士兵来操纵这些大炮
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Oh, thank god, because I have a huge test coming up
哦，谢天谢地。因为我有一个重要的考试要来了，
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So let's do a quick clicker question, and you tell me how many valence electrons does fluorine have? Remember, valence electrons are different from core, they're only the outer-most electrons in the outer-most shell.
那么让我们来做一个小选择题，请大家来告诉我,氟有多少个价电子，要记得，价电子与芯电子不同，它们是在最外壳层的最靠外面的电子。
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So, we would actually need a really, really, really tiny velocity here to actually overcome the size of the mass, if we're talking about macroscopic particles, to have a wavelength that's going to be on the order.
是10的负34次方焦耳每秒,所以如果我们谈论的是要一个，宏观粒子有相应数量级的波长的话，我们需要一个非常非常非常小的速度来。
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Well according to one school of thought ; there isn't anything particularly revolutionary about monotheism; and the classical account of the rise of monotheism, that has prevailed for a very long time, runs as follows, and I have a little flow chart here to illustrate it for you.
曾经某个思想学派告诉我们,一神论其实没有什么独特的新颖之处;,而它却能飞速崛起，备受重视，盛行了很长一段时间，正如我下面要提到的，我这儿有一些图来帮助你们理解。
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And one day so I was eating my ice-cream because the archives were closed, and this woman came up, and she was probably about fity, or something like that, and she ordered ice-cream, and so this guy says, "Well, Madame whatever, Madame Dupuis, you remember that day don't you, when the Germans came back?" And she said, "Oh I sure do, they hung my husband from that pole."
有一天我正吃冰激凌呢,因为档案馆关了,有个女人过来,她大概有五十岁,她要了个冰激凌,然后这哥们说,"我也忘了什么夫人了,杜普斯夫人,你还记得那天吧,德国人来的那天",然后她说,"我当然记得,他们把我丈夫吊在那根柱子上"
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And I know there's a lot to talk about this competition, but let's just get into listening mode here and talk about how we can figure out what the correct electron configuration is for this ion.
我知道刚才关于这次比赛大家有很多话要聊，但是请大家先转换到听讲的模式,来看看如何才能弄清楚,这个离子正确的电子排布。
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So, many people have relatives they know of that have had to have their heart imaged -- heart disease is a major problem in the United States, and there's a good chance that they had Cardiolite given to them to help in that imaging process.
它被用在心脏成像中,很多人都有一些亲戚他们-,必须要做心脏成像，心脏病已经是美国的一个主要问题,而很有可能他们就要用到Cardiolite来成像。
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That goes back to that idea of sort of discipline coding. It's easy to have assumptions about what you think are going to come into the program when you writ it. If you really know what they are use them as search, but if you think there's going to be some flexibility, you want to prevent the user getting trapped in a bad spot, and exceptions as a consequence are a good thing to use.
这又回到了规范编码的想法上来了,在你写代码的时候考虑,什么会进入你的代码的思考是简单的,如果你真的知道,他们是用他们来做搜索的,而你希望有一定的灵活性，你想要阻止用户,陷入一个艰难的境地,那么异常是非常实用的。
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You take your room temperature liquid helium and you cool it with liquid nitrogen to 77 degrees Kelvin, the new, you're not quite there yet 77k unfortunately right? Then you take hydrogen you cool it would liquid nitrogen to 77, then you can use your hydrogen gas.
首先要有常温的氦气,拿液氮把它冷却到77k，那个新来的7,你不坐在那儿，对吧？,然后用液氮把氢气降温到,然后就可以使用这个氢气了，想要用氢气来做焦耳-汤姆孙实验。
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