been

457 篇文章
Now lumps of heavily eroded rocks have been marooned in a sea of sand.
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Now lumps of heavily eroded rocks have been marooned in a sea of sand. 现在 这些严重侵蚀的石块 已被放逐在沙海之中

marooned heavily lumps eroded rocks sand sea been of in have now a
They discovered that Lechuguilla's limestone had actually been eaten away by sulphuric acid,
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They discovered that Lechuguilla's limestone had actually been eaten away by sulphuric acid, 他们发现龙舌兰洞的石灰岩 实际上是被硫酸侵蚀的

discovered had lechuguilla's actually limestone acid sulphuric eaten been away they that by
Lechuguilla's rock had not been eaten away by running rainwater.
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Lechuguilla's rock had not been eaten away by running rainwater. 龙舌兰洞中的岩石并非被流水侵蚀

had lechuguilla's rainwater rock running eaten been away not by
and since this discovery more than 120 miles of passageways have been mapped.
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and since this discovery more than 120 miles of passageways have been mapped. 自从那次发现之后 迄今已测绘了120多英里的地道

discovery mapped passageways than miles more since been of have this and
so these species must have been isolated for a very long time.
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so these species must have been isolated for a very long time. 所以这些物种必定 与世隔绝了相当长的一段时间

isolated species long these must time very been for have so 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
So far, more than 350 miles of underwater galleries in the Yucatan have been mapped,
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So far, more than 350 miles of underwater galleries in the Yucatan have been mapped, 人们迄今为止已绘制了350英里的 尤卡坦半岛地下水系图

mapped galleries yucatan underwater than miles more been far of in have the so
Yet their impact on life on the surface has been huge.
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Yet their impact on life on the surface has been huge. 然而它们对地面上的生物 却有着极其深远的影响

impact yet huge surface life their been has the on
For 500 years people have been harvesting the nests of cave swiftlets.
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For 500 years people have been harvesting the nests of cave swiftlets. 500年来 人们一直采集洞金丝燕的燕窝

harvesting nests swiftlets cave been for of have the people years
Originally, this whole area would have been one solid block of limestone,
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Originally, this whole area would have been one solid block of limestone, 起初 这整个地方都是 一整块坚固的石灰岩床

block solid originally limestone would area whole been of have this one