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"We know only about thirty-three percent of women have access to a program that actually has services in place to prevent mother-to-child transmission.
VOA: special.2009.07.29
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So that means that if we have three orbitals, we can only have six electrons in those complete three orbitals.
所以那意味着如果我们有3个轨道，我们有且只能有6个电子,在这3个完整的轨道。
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And we do two to three concerts per year. We have two rehearsals a week.
我们每年举行二到三次音乐会。每周练习两次。
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We hear from three players who have links to Washington,D.C.
VOA: special.2010.06.02
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It's about the four-dollar cup of coffee that we have three times a day, because we need to keep the feel going.
可能只是节省一杯4美元的咖啡,我们每天要喝三次咖啡，只是为了留住这种感觉。
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Today we have the last of three reports on bullying.
VOA: special.2010.05.06
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We're already using it up in this pi bond here, so that means we're limited to only two other spots on the molecule, so we have three.
我们已经把它用到这个π键里去了，所以这意味着,我们在分子里只剩下两个位置，所以一共是三个。
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"We have sent strong messages that we would like these three young people released as soon as possible,".
VOA: standard.2009.08.09
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I'm not working alone here, but we have three teaching fellows who are affiliated with the course, two of which are here today.
我并不是一个人讲授这门课,有三位助教,与我并肩战斗,今天有两位在这里
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"We need to have these results within the timeframe of three to five years,absolutely.
VOA: standard.2009.10.20
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In fact, I have it--suppose we have three assets and we want to compute the efficient portfolio frontier, the mean and variance of the portfolio.
事实上，假如我们拥有三种资产,我们想计算有效边界，及投资组合的均值和方差。
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"We have about three or four of us that lace up our tennis shoes at our lunch hour, and we walk for 30 minutes every day."
VOA: standard.2010.07.16
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Well they're not necessarily, because we only have the number three player in terms of size.
其实不是的,我们在规模上只能排到第三
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"We have genes inside our body that go back three billion years, largely unchanged.
VOA: standard.2010.04.16
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Now going from three to four right, so we have another isothermal process for an ideal gas, so I won't try to make you sing again so soon.
从第三点到第四点，这也是一个理想气体的,恒温过程，这次不用你们集体回答了。
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"We're very proud that of our first three graduating classes, have not only graduated from View Park Prep, but also have enrolled in top colleges and universities in the United States."
VOA: standard.2010.06.24
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We have to decide three things: one, the name of the function.
我们必须决定三个事情：一，函数名。
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"We have about three million international visitors a year. The difference is they make up about seventeen percent of our spending because they stay a little bit longer, they spend a little bit more."
VOA: standard.2010.05.04
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These units we call bars or measures and just to finish this off down here we would have three quarter notes of course, in this particular arrangement.
这些单元我们称之为小节,我们来把接下来的写完,这里我们有三个四分音符,当然,按照特定的安排
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"But with those six balloons, one is green,five are yellow or they may have three of them to be large and three of them to be smaller, or we may have one with a star on it.
VOA: standard.2010.08.10
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We're going to talk in a minute about those three sections, so you want to have that handy.
我们将用一分钟的时间讲这三大部分，所以你们要快点找出那张讲义。
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What I'd like to do is really about three things in this brief time we have together.
在这段短暂的时间里,我想谈论三方面内容。
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We have to add it all up so it's not just numbers, three against one; it's also all of those people at home.
得把这些加起来考虑,所以就不只是这个数字，三比一;,还要加上这三人的家人。
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We have the movie we are going to watch is nighty-three minutes, I think.
我们有部电影，我们将要看那部电影,我想应该是九十三分钟长。
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Huge, and one of the things that I argue in this book and also in the Princeton Projiect on National Security which I co-directed with John Ikenberry over the last three years is we have been singel-mindedly focused on the war on terror.
很大，我在这本书中试图说明一点,在普林斯顿国家安全项目中也试着强调,这一项目在过去3年内由我和约翰伊肯伯里共同负责,那就是我们仅仅盯在了一点上,我们盯着恐怖主义战争不放。
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We have like two months, about three weeks of sun and then it's finished.
我们有两个月，大概三个星期的晴天，然后夏天就结束了。
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And in this case we have three choices here in terms of what's going to be in the middle, so we need to decide that first.
而这种情况下对于哪个原子,在中间我们有三种选择，这是我们首先要确定的。
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That's what we call when we have three bonding atoms and one lone pair.
这是当我们有3个成键电子,和一个孤对时这样称它。
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So there's two different orbitals that can have these three quantum numbers, but if we're talking about electrons, we can also talk about m sub s, so if we have two orbitals, how many electrons can we have total?
所以有两个轨道可以有,这三个量子数，但如果我们讲的是电子，我们还要考虑ｍ小标ｓ,如果我们有两个轨道，一共有多少个电子呢？
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So what we'll have here is a trigonal planar case, and you can see that we only have three electrons that are set for bonding, so we'll add three hydrogens, and for b h 3, we'll get a stable structure here.
让电子劲量远离的时候，不用考虑它,这个例子是平面三角形，你可以看到，只有3个电子可以成键。
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