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Walking through these historic areas, visitors today might find it hard to believe that a deadly storm swept through the city over four years ago.
VOA: special.2010.01.22
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Pressure is when you have one of these hard spheres colliding against the wall.
这是一个小球,它与墙发生碰撞。
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So it's really going in there making a hard, like impact on these students.
所以那里就是存在这些现象，对学生影响很大。
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Factory owners found that these eastern and southern Europeans were hard workers.
VOA: special.2010.05.13
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Why has it been so hard and why does it continue to be difficult to identify these pluripotent cells within tissues?
为什么会那么难呢,为什么在组织中识别多能干细胞,始终困难重重呢
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These paintings show Americans hard at work in different industries.
VOA: special.2009.01.02
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All right. So, let's look at this in another way, sometimes it's hard to picture these waves combining.
好的，让我们从另外一个方面来看，有时候很难想象这些波函数的组合。
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I don't know if you're aware of this, but these honorary degrees are apparently pretty hard to come by.
VOA: standard.2009.05.17
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I actually do get worked up over these things because it drives me nuts because these are not hard problems to solve and yet consistently throughout society and your own laptops there are dozens of examples I'm sure of poorly designed software.
我确实对这些东西很生气,因为它令我发狂,因为这不是很难解决的难题,然而贯穿整个社会,在你自己的笔记本上，我确信有很多这样,设计地很挫的软件的例子。
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"Without some form of market incentive,we believe it will be very hard for them to keep conserving these forests."
VOA: standard.2009.12.17
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He speaks in a language of math and it is very important for students to be able to have hot copies so that they can take notes on the paper rather than be working very hard to copy down the equations that he used in these lectures.
他以数学语言授课,所以发给学生教学材料,是非常重要的,这样就可在纸上做笔记,而不用拼命,抄下他在课上,用到的等式。
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"As hard as it may be to sustain in these economic times, your commitments have never been more needed, they have never been more inspiring,".
VOA: standard.2009.09.23
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There is a kind of manifest and knowing confusion of the two in literature-- and Freud always says that the poets preceded him in everything that he thought--which suggests that it is rather hard to keep these things separate.
文学中二者并没有明确区分-,他想来想去也找不到论据,这就证明,的确很难区分它们。
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And here, this is Marianne being martyred by the French provisional government, and in the back is the-- is it the dawning of the social republic of the Left, that is these ordinary people who have fought so long and so hard.
这是玛丽安娜正在殉难,被法国临时政府杀害,这后面是,是象征着左翼的共和国的黎明,这也是平民们不畏困苦,坚持战斗的原因
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Most of the luck is bad; it's hard to succeed, and with some combination of luck, skill, determination and hard work all of that will decide which of these farmers will be successful and which will not.
靠投机取巧是很难成功的,只有包含着运气,能力,意志和勤奋的所有因素才能角逐出,哪些农民会获取成功,哪些会遭受失败
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While these gas molecules or atoms through first approximation, are like hard spheres.
可以看做刚性小球,每一个分子会占据。
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You don't have to work very hard to figure out what these different facial expressions mean.
你不必努力地去学习,去辨析不同面部表情的含义。
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So, for example, if you're the kind of person, which is I have to say all I ever was, if you're the kind of person who can kick the ball fairly hard but not very accurately, then it actually might change these numbers.
比如你是这样的一种人,我也不得不承认我以前也是这种人,如果你是那种能够大力抽射,但是精准度不高的人,那这些数据对你就不太准了
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Many parents push their children very hard to study these days.
现在很多父母都强迫自己的孩子努力学习。
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There's been a lot of work done on these over the years, but in fact, it's pretty hard to invent a good hash function. So my advice to you is, if you want to use something was a hash, go to a library. Look up a good hash function.
已经做过了很多的尝试和努力,但是事实是，很难发明出一个好的哈希函数,所以我给你们的建议是,如果你们想使用哈希功能,到函数库中查找一个好的哈希函数。
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And if they're a premade salad then it would be even more difficult because you're not constructing it yourself, so it's hard to uses based on these sort of things.
如果那是预制色拉,就更麻烦了,因为那不是你做的,就很难进行统计
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I put these conditions down because,of course, what I want to suggest is although the sentence everyone dies alone, the claim that everyone dies alone, is one of these things that people say, they're not really thinking very hard about what they mean by it.
我定下这些条件是因为，我想说尽管大家都说，人孤独而死，这都只是说说而已，人们说的时候并没有做什么深刻的思考。
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These cells are rare and so it's been hard to identify them, that's part of it.
这些细胞太少了,所以很难找到,这是原因之一
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But in hard drives where we actually have these moving platters, here is in fact, how we get from electricity and magnetism to those zeros and ones.
但是在传统硬盘中我们确实有高速运转的磁盘，这就是事实，但问题是我们如何,把电磁信号转化为0和1的。
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Now this is mostly irrelevant to what we're talking about except for the fact that there are magnetic particles involved and they're really small because it turns out what's inside most of your laptops and desktop computers are these things called hard drives.
其实这与我们现在谈论的话题没什么关系,除了这里的磁性粒子有关系外,它们是很小的因为它们要放在,你的笔记本电脑或者,台式机中被称为硬盘的里面。
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These in turn control the hard drive's moving parts.
这些反过来控制硬盘的移动部分。
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It's a secret number so that if Julius Caesar scrambled his message with the key 13, well, then the recipient had better know what that number is or realistically, -- and this is why it's kind of hard to buy -- into some of these age old algorithms, -- what would an alternative approach be to figuring out Julius Caesar's messages to his generals if he didn't know that secret number was 13?
它是一个机密的数字，以至于,如果凯撒大帝使用密钥13加密了它的消息，然后接收者最好知道那个数字是什么,实际上--这就是为什么很难,破解这些古老的算法-,有什么变换方法使凯撒大帝的将军,可以解密凯撒大帝的消息，如果他不知道,那个机密数字是13呢？
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Wooly Willy It turns out these are really hard to find in the 21st century.
，Wooly，Willy？,在21世纪很难发现这些东西了。
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One of these passes is a hard pass. It goes over the Alps.
一条路崎岖,需要翻越阿尔卑斯山
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So essentially, each of these orbitals come from linear combinations of all of the original orbitals, and it's hard to picture exactly how that happens, but one that you can at least start to get an idea is if you think about combining the 2 s and the 2 p z here, which is not quite accurate because of course, we're combining all of them.
本质上，这些轨道每个都来,自原来所有轨道的线性组合，我们很难想象这是怎么发生的，但你们可以至少有个概念,如果你们考虑2s和2pz轨道的结合，这当然是不太准确的，因为我们要把所有的都组合起来。
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