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This is Mars on Earth, a station that was built to help us learn how to live on the red planet. A group of explorers and NASA scientists are spending the next two weeks inside this habitat, trying to figure out how people will live on Mars. The NASA

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STEVE INSKEEP, HOST: Next we have a discovery about the ocean, which scientists learned from great white sharks. NPR's Merrit Kennedy has a story that reveals how much we don't know about what's underwater. MERRIT KENNEDY, BYLINE: Barbara Block has b

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Daily English-2015年02月10日

Stop worrying about the potholes in the road and enjoy the journey. 别再担忧路途上的颠簸起伏了，开始享受这趟旅程吧。(Babs Hoffman) 图片1

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By Paul Sisco Washington 08 May 2008 Engineer Hy Brown was the chief engineer of the U.S. World Trade Center in New York City. Years after the terrorist attacks in 2001, he has found a new passion-- developing pre-fabricated solar powered houses in I

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FAO Warns of Locust Threat in Mali and Niger Heavy rains have fallen over the past three weeks in northern Mali and Niger and thats resulted in growing swarms of Desert locusts. Efforts are underway to contain the insects in a region thats already fo

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Some methods of preserving food are easy to understand. For example, it's easy to see that freezing your food, or packing it in salt, would make it inhospitable to the microbes which would otherwise cause it to spoil. You might wonder, however, about

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歌词： When darkness falls and surrounds you When you fall down When you're scared and you're lost Be brave... I'm coming to hold you now When all the strength has gone And you feel wrong Like your life has slipped away Follow me, you can follow m