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Humans cannot, and would die if their legs were exposed for any length of time.
2017年12月六级真题(第三套)阅读 Section C
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The hills are remnants of an earlier geological era, scraped bare of most soil and exposed to the elements.
2018年6月六级真题(第一套)阅读 Section B
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The outer layers of the volcano were worn away until the hard core stood completely exposed.
2016年12月六级真题(第二套)听力 Section B
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Unless renewables become cheap enough that substantial carbon deposits are left underground for a very long time, if not forever, the planet will likely be exposed to potentially catastrophic climate risks.
2017年6月六级真题(第一套)阅读 Section B