but they could never have known that these flooded passageways were actually the beginning of subterranean rivers, 但他们从不知道这些水下通道 其实是地下河的入口

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  1. Yet some have managed it,
    但有些动物却能在此生存
  2. like the remiped, one of the most ancient of all living crustaceans.
    例如桨足虫——一种最古老的甲壳动物
  3. The Maya understood the importance of the cenotes,
    玛雅人知道沼穴的重要性
  4. but they could never have known that these flooded passageways were actually the beginning of subterranean rivers,
    但他们从不知道这些水下通道 其实是地下河的入口
  5. all of which eventually flow out to the sea.
    它们最终都流向大海
  6. Salt water, unlike fresh water, does not erode limestone,
    咸水与淡水不同 不会溶解石灰岩
  7. so most sea caves are created by the mechanical pounding of the waves.
    所以大部分海洋洞窟 是在海浪的机械冲击下形成的

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 211 行

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