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The robots had to pick up large balls and throw them into the trailers of opposing robots.
VOA: special.2009.04.24
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We have 266, as some of you might know who saw me counting ping-pong balls the other day in office hours.
看到了这些发泡胶球事实上,可以当作单层金原子核,我们有266个乒乓球。
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I started playing when I was about nine, hitting balls with my brother and my dad.
我大概九岁的时候开始打，跟我哥哥和爸爸打。
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It fires balls that burst and release a chili solution when they hit the elephant's skin.
VOA: special.2010.07.27
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But I'm sure you can easily see how these styrofoam balls could, in fact, be a mono layer of gold nuclei.
这个实验怎么工作的,我们先来做些计算，但我相信你们都已经。
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The events of the day were followed by celebrations at ten official balls throughout Washington.
VOA: special.2009.01.24
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Except for electromagnetism, the basics of mechanics, which is the motion of Billiard balls and trucks and marbles and whatnot, was set up by Newton.
除电磁学外,力学的基础,也就是台球,卡车,弹球以及其它小玩意儿的运动原理,都是由牛顿建立起来的
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But inaugural balls are supposed to be a time to dance and have fun.
VOA: special.2009.01.19
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They are out there with little balls, fliers and everything, and "come, come come to our group."
扔着纸团，传单，各种招揽，来吧，快来我们社团“
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People will also attend many other parties and unofficial balls around the Washington area.
VOA: special.2009.01.19
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It is like an elastic collision between billiard balls.
就像是台球在，台球桌上发生弹性碰撞。
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The Obamas can also play tennis on a court on the South Lawn, hit a few golf balls on the putting greens or run around the jogging track.
VOA: special.2009.05.08
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and hit balls as well from the back of elephants, amongst other things.
是从象背上去击球，除此之外都是一样的。
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When Shepard did hit the golf balls, they traveled "for miles and miles," as he reported, because the gravity on the moon is one-sixth of the gravity on Earth.
VOA: special.2011.05.15
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So we can build a machine that could sort red balls from blue balls.
我们就能制造一台,可以分辨红球和蓝球的机器
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Chris Wojciechowski is really cool." is a professional golfer, but he doesn't play the game with balls and clubs.
VOA: standard.2010.08.03
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So, 13 backscattered. TAs, if you can maybe pick up these ping-pong balls for me.
把这些球捡起来，我觉得如果，我摔倒一定很搞笑。
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Another source of concern: the discovery of 20 tar balls off Key West,Florida on Monday.
VOA: standard.2010.05.18
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Those of you who have your ping-pong balls can now begin the experiment.
好，我们会到这边来把球给你们,已经拿到球的同学就可以开始试验了。
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In the U.S., some toys,like small rubber balls, must carry warning labels.
VOA: standard.2010.02.23
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We have 266 ping-pong balls, and we need someone, hopefully you, to be some radioactive material that are going to be emitting these ping-pong balls. And when the time comes, in just a minute, I'll ask the TAs to come down and hand these out very quickly to you, so we can do this experiment.
你们有些人那天，看到我在办公室数乒乓球，我们需要几个人,希望是你,来作为放射材料，放射这些乒乓球,等会我会让助教,把这些球发给你们。
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And,he said, tar balls are less toxic.
VOA: standard.2010.05.26
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All right. So, we'll come around and get ping-pong balls to the rest of you.
还有什么问题吗？如果你们,还没有乒乓球的话请举手，还有问题吗？
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Dr.Smith compares those balls to gum balls.
VOA: standard.2010.02.23
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PROFESSOR: So, as you're getting your ping-pong balls -- do not throw them yet.
如果你觉得，你的准心很好的话，你们现在都拿到乒乓球。
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But the sight of workers wearing white protective suits and gloves hauling in tons of oil-contaminated waste - including bags of sandy tar balls, vegetation,used oil booms, rags and other clean-up supplies - has caused alarm among some Gulf coast communities.
VOA: standard.2010.08.05
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I am modeling them as billiard balls of a finite dimension.
我把它们想象成具有有限尺寸的台球。
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But in our case, the probability of backscattering is going to be the number of balls that backscatter, and that's going to be divided by the total number of ping-pong balls.
用20除以132000，但现在背散射,的概率是被散射回来的小球，除以总的小球数,你们记得。
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