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Several years later, researchers discovered the exact cause of pellagra: a lack of the B vitamin known as niacin.
VOA: special.2009.01.27
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Well, that then says after another 12 steps, 12+12+t we're down to a problem with size t of b over 4.
更进一步，也就是。
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so she made up her art gallery where there were a bunch of like these old B-list movie posters.
所以她开了自己的美术馆，那里有很多古老的B级电影的海报。
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Getting a grade like a B-plus or a C-minus adds or subtracts a few tenths of a point.
VOA: special.2009.03.05
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But now, imagine that we are living in the early years of a polis sometime in the eighth century B.C.
但是,现在想象一下,假如我们生活在公元前八世纪
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He says these particles would offer a more exact method of transporting the short-lived drug, called B-H-three mimetic.
VOA: special.2010.03.16
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If you want a real world example of this, think about the third Century B.C., someone can correct me afterwards.
现实世界也有这样的例子,大概在公元前三世纪,如果我说错了请大家来纠正
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And forty percent thought they should get a B, the second highest mark, just because they did most of the reading for class.
VOA: special.2009.03.12
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bug And maybe by understanding why it worked on a and not on b, you'll get a lot of insight that you won't if you just focus on the bug.
发现很多东西，而你只关注,本身的话就发现不了这么多东西,如果知道你的程序至少还对。
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Most American colleges and universities use the grading system of A,B,C,D and F.
VOA: special.2009.03.05
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Look, you're smart enough probably most of you to pull off some sort of B without breaking into a sweat, or at least not a significant sweat.
听着，你们也许足够聪明大多数人,最终不费力的得到80分，或是至少花点功夫。
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The pilot of the huge B-52 bomber plane pushes a button.
VOA: special.2010.07.07
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Well, this is an approach that's been used in a variety of vaccines, most successfully with Hepatitis B, so the problem is where do you get these proteins?
这种方式,已经为许多种疫苗使用,乙型肝炎疫苗是最成功的,但问题是该从哪里获得这些蛋白质呢
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Released in 1955, it was the first of more than a dozen Top 10 R&B hits Richard collected over the next three years.
VOA: standard.2010.07.08
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You don't really puzzle your head about questions of interpretation, how we determine the validity of interpretation and so on, until A) meaning becomes terribly important to you, and B) the ascertainment of meaning becomes difficult.
你一般不会在诠释，和如何确定诠释的正确与否，这样的问题上纠结，除非：1，意义对你来说很重要，2，确定意义很困难。
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But,B'Tselem's Jessica Montell says the continued reports of atrocities warrant action by Israeli society as a whole.
VOA: standard.2009.09.09
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That's common sense. This is part of your DNA, And then their final product is an object, a b which ends up at a temperature or a warmness which is in between the hot and the cold.
这是常识，是你的一部分，它们的最终产物是一个物体，其温度或温暖程度,介于热与,冷之间。
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It's kind of like , where you had side A,side B and you just flipped it over when you wanted to change your mood so to speak.
VOA: standard.2010.06.18
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In an extreme case b, we had a z effective of 2, so essentially what we had was no shielding at all.
我们有效的z是，所以本质上我们完全没有屏蔽。
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He went on to become a sought-after studio musician, working alongside a steady stream of pop and R&B greats, before landing a solo recording contract in 1992.
VOA: standard.2010.04.12
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And a bit, B-I-T, just a shorthand for binary digit, 2 so a digit of zero over a one, bi means two, you only have two digits.
比特，B-I-T，是binary，digit的简写，从0到1的数字，而bi表示，所以你就只有两个数字。
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B.C.Street is a group of seven pavilions representing 82 communities throughout British Colombia.
VOA: standard.2010.02.23
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Then, to find the meaning of b, we take one derivative of this, dx/dt, that's velocity as a function of time, and if you took the derivative of this guy, you will find as at+b. That's the velocity of the object.
接下来,为了弄清b的含义,我们取它的一阶导数,dx/dt,得到速度作为时间的函数,如果你对它求导的话,你会得到at+b,这就是物体的速度
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a result of his life-long infection with hepatitis B.
VOA: standard.2010.07.26
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In the case of France again, they are the work of a brilliant military engineer called Vauban, v-a-u-b-a-n.
例如法国,在佩皮尼昂 里尔 蒙梅迪等地方,这样的要塞城镇随处可见
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(Speaking) Bdi says although they can't exactly get back the time lost as a result of these technical delays, other steps in the process can be accelerated to ensure that the vote happens on schedule.
VOA: standard.2009.09.29
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A Review of B. F. Skinner Chomsky is one of the most prominent intellectuals alive.
s，Verbal，Behavior,乔姆斯基是如今仍然在世的,最杰出的学者之一。
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"There were some problems with some tactics, techniques and procedures, the way in which close air support was supposed to have been executed in this case, such that, at least with one of the aircraft involved, a B-1 bomber, that plane because of how it takes its bombing routes had to break away from positive I.D.
VOA: standard.2009.06.08
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This will generalize to probability of A and B and C equals the probability of A times the probability of B times the probability of C and so on.
简单的说,A和B和C同时发生的概率,等于A发生的概率乘以B发生的概率,乘以C发生的概率,以此类推
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Well, the way we can reason things out from the evidence we have suggests that Greek-speaking peoples came down into the area around the Aegean Sea, perhaps around 2000 B.C., about a thousand years later than the emergence of the Minoan civilization at Crete.
根据现在我们掌握的资料推断,讲希腊语的人群主要集中在爱琴海附近,大概在公元前两千年左右,在米诺斯文明出现在克里特岛大概一千年后
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