简介:A team of Moscow cavers turned out to be the discoverers of the deepest secrets of the planet. They set a world record: the Verevkin cave in Abkhazia turned out to be the deepest on the planet.
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内容简介
A team of Moscow cavers turned out to be the discoverers of the deepest secrets of the planet. They set a world record: the Verevkin cave in Abkhazia turned out to be the deepest on the planet.
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