单词：coalescing pediment
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Raindrops 雨滴 From a light rain to a heavy downpour, raindrops fall to Earth's surface. And if you watch over time, you'll see that some raindrops are small and some much larger. Find out why -- on today's Earth and Sky. DB: This is Earth and Sky,
(科普英语)Earth and Sky
This is Scientific American's 60-Second Science. I'm Karen Hopkin . This will just take a minute. When you get caught in a downpour, you probably dont think about the size of the raindrops that assault you as you run for cover. But physicists do. And
Scientific American(七)月
US: Recognizing Syrian Opposition Strengthens Fight Against Assad With Syrian rebels gaining ground on Assad forces, the Obama administration says recognizing political opponents strengthens the fight against him. We have said all along that in the a
VOA标准英语2012年(十二月)
Global Stocks Fall on US Recession, European Debt Worries Global Stocks ended the week lower as fresh worries over a possible U.S. recession and Europe's debt crisis roiled markets anew. The inability of political leaders on both continents to deal w
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Top 5 Songs for Week Ending August 17 Were spotlighting the five most popular songs in the Billboard Magazine Hot 100 pop singles chart, for the week ending August 17, 2013. Last week, One Direction smashed into the hit list in second place with Best
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David Reitze, executive director of the U.S.-based Laser Interferometer Gravitational-Wave Observatory, also known as LIGO, made the announcement in Washington D.C. Ladies and gentlemen, we have detected gravitational waves, we did it! The gravitatio
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They were proposed almost exactly 100 years ago by Albert Einstein based on his theory of general relativity but it was only in February 2016 that scientists proved the existence of gravitational waves. And now China is starting work on the worlds hi
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Joe DeCapua 07 April 2010 Racial tensions remain high in South Africa following the recent murder of white supremacist Eugene TerreBlanche. Wednesday, the ruling ANC party issued a statement urging restraint among its members. Thousands of people sho
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Plum-pudding is the term bestowed upon certain fragmentary parts of the whale's flesh, here and there adhering to the blanket of blubber, and often participating to a considerable degree in its unctuousness. It is a most refreshing, convivial, beauti
白鲸记
What Shoemaker and his colleagues found was that there was more risk out therea great deal morethan anyone had ever imagined. 苏梅克和他的同事们发现的是，外层空间存在着比想像的还要多多得多的危险。 Asteroids, as most
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