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So it doesn't matter how big the dictionary is, you can instantaneously retrieve the value associated with the key. Extremely powerful.
因为你可以在线性时间，内得到想要的键对应的值,这太强大了。
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Yes. Most of our clients are people who have been living in an apartment or in a house for a while
好的。绝大多数委托人都是在公寓或者住所内居住有一段时间了，
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They were looking down into a lowered place, where something white was lying, squirming a little, in a box lined with black cloth.
他们在往低处看,在一个围着黑布的箱子里，好像有什么白色的东西躺在里面，微微地蠕动，在很短的时间内。
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OK. In the length of time it takes for the light to get from that bulb to the table, this machine processes two operations.
好，在灯光从灯泡到,桌子的这段时间内，电脑已经进行了两次运算了。
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The crucial point about the syllabus is that it indicates what reading you need to have done for any given week.
教学大纲的关键点,是指出了什么样的读物,你需要在给出的时间内完成。
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It is also pretty clear that for some after the foundation of the polis, there were no city walls.
而且很明显,在城邦建立起来之后的相当长的一段时间内,都没有城墙
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When a brief pulse of electricity is sent to the read/write head it flips on a tiny electromagnet for a fraction of a second.
当一个简单的电脉冲被送到读写头,它会短时间内出现一个小的电磁。
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You know, and within a very short amount of time be able to do a lot of things that that person may never be able to do.
在短时间内,可以做很多,那些只有丰富经验的人做不到的事。
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Well, this shows what happened in the period after this vaccine was introduced into the general population so that would have been in 1954.
这表明了,疫苗在一九五四年,引入大众后的一段时间内,发生了什么样的情况
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Of course, you have allowed it to move a finite distance in a finite time.
你是让它在有限的时间内移动有限的距离
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The return, of course, in any given time period is the percentage increase in the portfolio; or, it could be a negative number, it could be a decrease.
当然了，收益率是一定时间内,投资组合的增长率;,也可能是一个负数，表示负增长。
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What they do in this study is they took this cohort of a hundred thousand nurses and then have followed them repeatedly over the years, with very careful assessments of diet, health status, and other things, and countless papers, important papers have been published from this particular cohort.
在研究过程中,他们以十万名护士为研究群组,很长一段时间内定期追踪她们的信息,包括关于饮食健康状况等的详细评估,同时还不断刊发基于这一研究群组,的重要论文
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Now do that in a sound byte on a national radio station when you got two minutes to answer.
这时你就得为全国听众一字一句地,在两分钟时间内解答这个问题
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So that way you can have an idea if, oh, I do really understand this but I'm a little bit slow, maybe I need to practice this one type of problem a little bit longer so I can get up to speed so I'm going to be able to get through all this in terms of the exam time.
这样你就可以知道，假设，噢，我真的懂这个，但是我的速度有点慢，或许我需要在练习这个类型的题目上,多花一点时间,这样我就可以提高自己的速度,可以全部做完,在考试规定的时间内。
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I almost said 'next week' but we rarely plan that close to the event.
我这里说“下星期”,但其实很少在那么短的时间内才计划。
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Their eyesight and hearing improved significantly in as little as a week.
他们的视力和听觉有明显改善,在短短一周时间内。
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And even if over a period of time the average amount of their regard is lower because they started lower and then got higher than someone who was always high, it's the ones who were first lower who then went up that capture our attention.
即使在一段时间内,他们对我们的评价依然不高,但是因为起点较低,只要是在日益改善，总比一开始就对我们评价好的人更有吸引力，正是开始低而慢慢增加的人,会引起我们的注意。
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Or another way of saying it is, we're going to use as the basic steps, those operations that run in constant time, so arithmetic operations.
我们用可以在恒定时间内完成的操作,算法，比较,内存读取。
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And then we hand you 140,000 English words in the form of a big text file much like our aspiring pre-med students in recent months, and we challenge you to implement the fastest spellchecker possible.
然后我给你一个包含1万4千单词的超大文本,就跟前段时间那位,有抱负的医学预科班的学生一样,我想让你在最短时间内实现拼音检查。
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Where's the penalty? What did I trade off here?
所以我可以在常数时间内做查找，太棒了？
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But if you imagine making these measurements more and more and more quickly, in the end, you can measure what you can say is the acceleration now.
但如果你想越来越短的时间内,测量这些数据,最终,你会测量出你所说的现在的加速度
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The gentleman has it exactly right.
我怎么可能在亚线性时间内完成呢？
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It's still--they can make losses for a long time before they're in trouble, so presumably there won't be a problem, but in principle there could be and so that's the kind of issue that we have now.
在陷入困境之前的很长一段时间内,他们可以承受亏损,也可以假设不会有任何问题发生,但是原则上讲是有可能会出问题的,这就是我们面临的现状
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It's - a suture or a stitch has to hold the wound closed so it has to have certain mechanical strength and imagine the problem of making something that's dissolvable so it disappears but also is strong enough to hold a wound closed reliably for a length of time.
能够拉紧切口的缝合线,就必须具有一定的机械张力,大家想像一下制造这种缝合线的难度,身体组织不仅要能吸收这种缝合线,而且这种线必须有足够的张力,一定时间内能够拉紧切口
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A test suite is small enough so that we can test it in a reasonable amount of time.
测试集必须小到我们可以在一个,合理的时间内完成他，但是必须大到。
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So, over the course of time this could have a very substantial impact on the community.
所以,这种病毒在一段时间内,会对当地社会产生持续的影响
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The Bank of England has been providing an example for the world for a long time.
英格兰银行一直在很长时间内,为世界各地的银行提供了例子。
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Here, in one second, it seems to have gone much further, so it's probably traveling faster.
在这一秒内,它似乎运动了更远的距离,所以这段时间它可能运动得更快
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Okay, well the interesting thing is, you guys in a very short period of time generated a number of ideas about what this could be.
好,有意思的是,大家在很短时间内,猜出了很多种东西
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When you buy a house, you borrow the money and you pay it back in fixed-- it would usually be monthly, but let's say annual payments.
当你买了一座房子,你贷了些款,然后你在一定的时间内偿还一部分,一般来说都是按月来算的,但是假设我们是按年支付的
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