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Fact: liquid water is heavier than air. Fact: clouds, which consist of water droplets and ice crystals, seem to hover in the air. One final fact: the water droplets in a typical cloud together weigh many tons. Which raises a question: how do clouds s

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中英双语新闻——150 Micro blogs’ creative magicians

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经济学人236:金属,自己愈合吧 Metal,heal thyself

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China to give further support to small, micro-sized firms

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What's more, I've detected those falling and rising currents that make up the ocean's true breathing. 此外，我又注意过那些由上而下和由下而上的水流，形成真正的海洋呼吸作用。 I've seen a molecule of salt water heat up

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