a technique that has been used here, in Mexico, to chart the largest underwater cave in the world - 在墨西哥的这个地方 这种科技被用来 测绘世界上最大的地下水洞

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chart used mexico underwater cave largest technique here been has in that world the to a
  1. It becomes their lifeline -
    这成了它们的救生索
  2. literally.
    绝对如此
  3. The string also doubles as a measuring tape -
    这根线同时也是测量尺
  4. a technique that has been used here, in Mexico, to chart the largest underwater cave in the world -
    在墨西哥的这个地方 这种科技被用来 测绘世界上最大的地下水洞
  5. all 100 miles of it.
    全长达100多英里
  6. Cave exploration often requires you to push yourself through narrow gaps in the rock.
    洞穴探险需要不时挤过 一些狭窄的岩石缝隙
  7. Cavers call such places 'squeezes.'
    洞穴专家称之为“瓶颈”

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 191 行

Walden21
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