单词：ST_moving-objects_removing-and-extracting
单词：ST_moving-objects_removing-and-extracting 相关文章
Theartofbeinghappyliesinthepowerofextractinghappinessfromcommonthings.快乐的艺术是由平凡提取快乐的能力。（HenryWardBeecher） 图片1
Daily English-2016.01
Why Do Stars Twinkle? If youve ever glanced skyward on a clear evening, youve probably noticed with some wonderment the sheer numbers of stars. Some are tiny, barely visible points. Others radiate strong white light. And from our earthly vantage poin
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Why Do Golf Balls Have Dimples? Youre out on the golf course one pleasant afternoon. Your ball is set on the tee. You lean over the ball. You grip the club just right. Your arms are straight. Your stance perfect. Whoosh! You swing, and the ball takes
英语听力文摘 English Digest
U.S. President Donald Trump, in an interview with the Washington Examiner this week, wondered, Why was there a Civil War? Why could that one not have been worked out? The United States fought the civil war from 1861-1865. The war began after 11 south
2017年VOA慢速英语(五)月
(THEME) VOICE ONE: This is Nicole Nichols. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today we tell about discoveries of the past on the island of Saint John, in the United States Virgin Islands. Saint John
2018年VOA慢速英语(九)月
Beginning开始 There are two common approaches to determining how to begin.At smaller events, it is common to wait to take a bite until everyone at the table has received a serving and the hostess has begun eating. Sometimes a hostess may urge her g
实用英语
Little Johnny watched, fascinated, as his mother smoothedcold cream on her face. Why do you do that mommy? he asked. To make myself beautiful, said his mother, who then beganremoving the cream with a tissue. What's the matter? asked Little Johnny. Gi
趣味英语
By Ernest Leong Washington, DC 01 September 2006 watch Hollywood Movie Stars There's an old show business saying, There's no such thing as bad publicity. But some A list, or top tier, Hollywood movie stars have been getting a lot of negative press l
2006年VOA标准英语（九月）
New Robotic Arm Can Grasp Moving Objects An international team of engineers based in Switzerland built a robotic arm that learned to perform complex movements. The term robotic arm covers a variety of mechanical devices from robots that weld automoti
VOA标准英语2014年(五月)
If there's a black hole at the center of our galaxy, that's gonna force these objects that are really close to the black hole to move much faster than they would move if there were no black holes. So the first thing you wanted to see is there are ver
探索与发现2013年
M: Kids these days! They have no respect; they don't know the value of dollar;they can't pay attention to anything for long. F: Actually, that last one may be true. Well,the older generation always complains about kids. But researchers who study the
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What's in store for tech fans in 2008? Plenty. Technology buffs can look forward to products that are better, faster and less expensive than those we rely upon today. The iPhone may have been the biggest tech product rollout of 2007, but that doesn't
英语听力文摘 English Digest
Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康
阅读空间
Frost-free Freeze Physics 昇華是指一种物质从固态不经过液态直接转化为气态的过程，是物质在温度和气压低于三相点的时候发生的一种物态变化。与昇華相反的过程称做凝華，指物质从气态直接变
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Making Contact 为什么戴隐形眼镜看东西更清楚？ Don:I get contact lenses to replace my glasses and its like Im seeing the world through new eyes. Its miraculous ! Yal: Acutlly, Don, there is nothing miraculous about it. D: Who tell? Y: W
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Dont Try This at Home! Heres a hypothetical scenario that is to remain hypothetical. In other words, dont do this. Okay. Youre cruising along a desert highway in your souped-up roadster, leaving the roadrunners in the dust. Unfortunately, you are not
英语听力文摘 English Digest
*第十一篇 Virtual Driver Driving involves sharp eyes and keen ears，analyzing with a brain，and coordination between hands，feet and brain. A man has sharp eyes and keen ears，analyzes through his brain，and maintains coordination between hi
实用英语
Why Frisbees Fly With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well? One reason is something called gyroscopic force. This is the tendency of a spinning object to mai
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The Front End of the Earth 火流星看上去非常明亮，像条闪闪发光的巨大火龙，发着沙沙的响声，有时还有爆炸声。有的火流星甚至在白天也能看到。火流星的出现是因为它的流星体质量较大(质量大
英语听力文摘 English Digest
What Came First, Language or Perception? Have you ever wondered what came first? Language or perception? Find out on this Moment of Science. Yael: Down,what came first? Language or Perception? Down:Hey!Is this one of those questions with no answer? Y
英语听力文摘 English Digest