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The "Phase Two" plan will nearly double the size of the mall.
VOA: special.2010.08.13
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So we have like, I'm course 2. And my classes are, you know, two double o one (2001)
比如说，我的专业是课程2，我的课是001（2001），
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If I took two double stranded DNA molecules and I exposed them to certain conditions that caused them to denature, that means its native structure falls apart.
假如我把两条DNA双链,放在特定的条件下,使它们变性,变性表示使它们的原始结构分开
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This is Elliott Carter's Double Concerto for Harpsichord,Piano and Two Chamber Orchestras.
VOA: special.2010.07.12
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and two double o three (2003), two six fifty (2650).
03 （2003）和650（2650）。
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That is almost double the number from two thousand seven.
VOA: special.2009.05.27
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And we find the same thing for these two atoms here, it's not actually a double bond, it's somewhere between a single bond and a double bond.
而且我们发现这两个原子的情况是一样的，它其实不是一个双键，而是介于单键与双键之间的。
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Despite what he calls overblown fears of a double-dip recession, Cardillo predicts the U.S.economy will grow between two and a half to three percent for the second half of the year.
VOA: standard.2010.07.20
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Double that, times by two, this is the money I will be making in one month.
再翻倍，乘以二，这将是我在一个月赚到的钱。
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"In a short time,we realized that we were going to have 27 wells within a short walk from the house, And as of today,we have 63, with indications that will double in the next two years."
VOA: standard.2010.01.02
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You start with O double minus, so that is oxygen plus two electrons.
你从氧二负离子，也就是氯元素带2个负电子。
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Those are two continuous strands that wind around each other to form the double helix.
这两股主链,相互缠绕形成双螺旋
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If it goes on for ten years that means that the -it'll double in seven years, so it'd be going up like two and a half fold.
如果按照此速度过上十年就意味着,七年内价格将会翻倍,所以价格应该会上涨到两倍半
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If we want to talk about two hydrogen atoms, then we just need to double that, so that's going to be negative 2 6 2 4 kilojoules per mole that we're talking about in terms of a single hydrogen atom.
而要讨论两个氢原子，我们只需要把它乘以二，因此应该是负的，2624，千焦每摩尔,这就是单个的氢原子的情况。
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One thing that I want to mention that is really important is once you have double bonds, what happens between those two atoms in the molecule is they can no longer rotate in relation to each other.
我要提醒你们的非常重要的一点事,一旦有了双键，分子中的两个原子,就不能相对旋转了。
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What happens during mitosis is that the cell is able to separate this double set of chromosomes into two sets and that happens in a way that's shown in this cartoon here.
当细胞有丝分裂时,细胞将其分开形成两组染色体,如下图所示
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The DNA molecule here has been spread apart, opening up two single stranded DNA's which have complementary base sequences because they were double stranded DNA.
这里DNA分子被分开,形成两条单链DNA,这两条单链碱基序列互补,因为它们是由双链DNA解旋形成的
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The result of this process if this replication went down the whole length of the DNA would be to form two identical, double stranded DNA molecules.
如果复制过程在整条链上持续进行的话,将生成两条完全一样的,双链DNA分子
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If I'm talking about two DNA strands and they differ only in one or two base pairs they won't be exact complements and they won't form this double helix.
假设有两条DNA单链,有一两个碱基不能配对,它们就不能完全互补,也无法形成双螺旋形结构
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