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5665 篇文章
making it a particularly difficult place for animals to live.
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making it a particularly difficult place for animals to live. 对动物而言是极为困难的生境

making live particularly difficult animals place it for to a
a technique that has been used here, in Mexico, to chart the largest underwater cave in the world -
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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

chart used mexico underwater cave largest technique here been has in that world the to a
Cave exploration often requires you to push yourself through narrow gaps in the rock.
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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

gaps narrow push requires exploration often cave yourself rock through in you the to
To avoid getting lost
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To avoid getting lost 为了避免迷路

getting avoid lost to
that we've come to appreciate the full significance and scale of these flooded passageways.
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that we've come to appreciate the full significance and scale of these flooded passageways. 我们才能完全了解 这些地下水道的重要性及其规模

passageways scale significance appreciate we've flooded full come these of that the to and
to reach the flooded caverns.
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to reach the flooded caverns. 伸入到水洞之中

caverns flooded reach the to
one might not expect to find plants.
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one might not expect to find plants. 似乎不太可能会有植物

find expect might plants not to one
so the Maya relied on the cenotes - the flooded entrances to the water-filled caves.
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so the Maya relied on the cenotes - the flooded entrances to the water-filled caves. 因此玛雅文化完全依赖于沼穴 ——地下水洞的入口

water-filled entrances cenotes relied maya caves flooded the to so on
can take many thousands of years to develop.
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can take many thousands of years to develop. 经历了数千年的形成过程

develop thousands many can of to take years
the colonies will continue to flourish.
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the colonies will continue to flourish. 燕群仍旧可以长盛不衰

colonies flourish continue the to will