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In the book, we meet John Muir as a youth fearlessly climbing the roof of his house.
出自-2013年6月听力原文
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Mountain climbing is becoming popular sport, but it is also a potentially dangerous one.
出自-2012年12月听力原文
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At heights of over 18000 feet, people may be climbing in a constant daze(恍惚)
出自-2012年12月听力原文
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This is troubling as climbing Arctic temperatures combined with rapid sea ice loss are creating a new type of climate feedback loop, which could accelerate Arctic warming.
2018年12月六级真题(第二套)听力 Section B