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Some of the heat is used directly or produces useful work; the rest is lost or rejected, radiated into the atmosphere from the engines, motors, boilers and all the energy-consuming machinery that makes American’s wheel go around.
出自-2015年12月听力原文
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billion metric tons of carbon into the atmosphere each year - making forests the leading source of greenhouse gases.
出自-2013年6月阅读原文
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As long as we're consuming fossil fuels, we're putting out CO2,"says Klaus Lackner, a geophysicist at Columbia, University" We cannot let the CO2 in the atmosphere rise indefinitely.
出自-2012年6月阅读原文
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As you can see, ladies and gentlemen, the guests were seated very informally around this oval table, which would add to the relaxed atmosphere.
出自-2013年12月听力原文
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Just before people began entering the hall, Larry dimmed the lights and turned up the sound system, which was playing soft music, hoping to create a warm personal atmosphere for the speech
出自-2013年12月听力原文
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To create a warm personal atmosphere.
出自-2013年12月听力原文
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It is estimated that 25% of all methane that released into the atmosphere coming from farm animals.
出自-2013年6月听力原文
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Half of the methane in the atmosphere is from animals
出自-2013年6月听力原文
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They shouldn't work in smoky atmospheres.
出自-2013年6月听力原文
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Harm to singers done by smoky atmospheres
出自-2013年6月听力原文
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So that's not a good atmosphere for a child.
2016年6月六级真题(第一套)听力 Section C
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The carbon that we've put into the atmosphere keeps having a warming effect for 100 years, so we have to cut back rapidly now, because it would take a long time to work its way through into a response by the atmosphere.
2016年6月六级真题(第一套)听力 Section C