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On Thursday, we'll look at why that allows you to do lots of things more conveniently than you can do without mutation.
周四我们会探讨下,为什么这种可变性会让你,在进行很多操作的时候方便了许多。
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And a lot of the time obviously, they have, you know, Polish people, a lot of Polish people in Britain,
而且显然，很多时候，这里有波兰人，很多波兰人在英国。
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I'm going to start somewhere near the middle of the code. Again, a lot of times, people don't do that.
我会在代码中间的某个位置开始,再说一次，很多时候人们不会这么做。
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And we're data junkies, so we like to get a lot of data before we make a big decision like that.
我们是数据控，所以一般先收集很多数据,在做重大决定的时候。
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It also is the case that probably many of you have already read it and possibly studied it in school and talked about it.
也有可能是你们很多人都已经读过,也有可能是在学校的时候就学过并讨论过的。
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And, following a test, a lot of people write in pencil: don't try to erase something and bring it back and say that, oh, actually, this is what I had because we look at that and go, this is perfect.
还有，在测试的时候，很多人用铅笔：,不要试图擦掉什么，把它带回,说，事实上，这是我的,因为我们看了一下就走了，这很完美。
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I remember when I was a student in Paris I remember going up to-- and that's where they massacred lots of people.
我记得自己在巴黎上学的时候去过个地方,有很多人在那里被屠杀
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Hobbes, in many ways, finds himself in the position of the young military lawyer played in the following movie clip. I'm going to show you.
很多时候，霍布斯会发现自己,深陷在某种困境里，就像我们马上要看的,这部影片中一位年青军事律师所处的困境一样。
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Now, so there's probably a number of people in this room, so when I first started teaching this class 20 years ago, everybody in the room had had chickenpox.
现在,这间教室中的很多人也许,在二十年前,我第一次教这门课的时候,当时教室里的每个人都得过水痘
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It used to be believed, and it's the sort of thing I would-- when I taught this course many years ago I would lecture on-- that neurons do not grow back once you lose them.
人们曾经相信,我在很多年前,教授这门课的时候,会告诉大家,一旦你的神经元受损,它们便无法恢复
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So this is perhaps a site that some of you have spent way too much time on last year, if not in the past week or so, com this is isawyouharvard.com.
很多同学去年的时候,在这个网站上花费了很多时间，可能上周还玩了，这个网站的网址是isawyouharvard。
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that a lot of times those people are doing the jobs that no one else wants to do.
很多时候那些人都在干没人想干的工作。
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Often, when I am teaching "creative writing", teaching "humility", a text which I appeal is actually a Zen text.
很多时候，在我教创作型写作，灌输谦逊的理念时，我经常谈到一步有关禅的作品。
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The WHCF in most configurations, usually most effectively in that role, is a staffer.
白宫办公室主任在很多情况下，最充分执行职务的时候，其实是一个职员。
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This is so obvious in this problem, but when you see more complicated formula, you may not know all the assumptions that went into the derivation and quite often you will be using it when you shouldn't.
在这道题中这些都很明显,但是当我们用更复杂的公式时,你可能搞不清楚所有,在推导时的前提,因此很多时候,你都会用错公式
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I mean sometimes if you have things that are a mixture of foods, like you go out for Chinese food or you have a casserole somewhere, or you have some dish of vegetables mixed together, how do you make sense of that when it comes to entering these things into a record.
我是说,有时候有一堆食物在你面前,如出去吃中餐,或你面前有一份大杂烩,又或者是很多蔬菜混合在一块,在输入饮食记录的时候,怎样才能让你输入的东西有意义呢
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And yeah, you do get a lot of drunks falling out at that sort of time, so.
在那个时候，你会见到很多醉汉争吵。
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And anytime you are here in London or a lot of theatres around the UK,
任何时候，在伦敦或者英国的很多剧院，
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And very often, the answer to some of our most pressing questions lies on the children on the bus.
很多时候，最紧迫的问题的答案,就在汽车的孩子身上。
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Because a lot of these ships go blub on the way back, or are taken by pirates and stuff like that, they say, "We want to insure this ship.
因为有很多船只在回程的时候会损坏,或是被海盗之类的匪徒抢劫,他们说,"我们想为这船提供保险
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Most of the time I walk down Fifth Avenue with my mouth just watering
很多时候，我在第五大道都是边逛边馋涎欲滴，
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and in the summer I go there a lot. As a matter of fact, I walk, you know like, the Harlem has a lot of hills.
而且，我经常在夏天的时候到河滨公园。哈莱姆有很多小山。
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I met a lot more interesting people in Los Angeles,
所以我在洛杉矶的时候见到了很多有意思的人，
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So, for a lot of aspects of your life you only get feedback when you're good, when you do something good.
在你生活中很多时候，通常你收到评价,都是你做得好，或者你做了好事时。
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Well as we'll see later in the term, we're going to use a lot of randomness in a lot of our programs. Where we essentially do the equivalent of flipping coins or rolling dice.
我们会在晚些时候学到，我们会在很多程序中,用到一系列的随机检验,这跟掷骰子或者扔硬币差不多。
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One answer is there are times in your life where half a second can matter a lot.
第一个答案是,在你生命在有很多时候,半秒钟能产生巨大的影响。
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Yes. I've had it also many times, you usually get novacaine for cavities.
有，我也用过很多次了，通常在治疗蛀牙的时候会用到它。
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And so very frequently, of a Friday evening or a Saturday evening, we'll sit around and drink beer with people of that kind and with remarkable opportunity for somebody like me, cuz I found that I was intrigued by what they were doing.
因此，很多时候，在周五或周六的晚上，我们和这些人会围坐在一起，喝啤酒,这对像我这样的人来说是个很好的机会，因为我对他们的经历很感兴趣。
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The amount of food available is striking, I mean in the period of time I was--since I was a child there are a lot of changes that have occurred, and I mentioned some of this in the last class-- but when I was a child you didn't have rows and rows of food at a drugstore.
现有粮食的数量是惊人的,当我还是小孩的时候,身边就发生了很多变化,我上节课曾提到过一些,在我小的时候,药店里还没有满货架的食品
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