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1800 篇文章
the water takes on a new, more erosive power.
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the water takes on a new, more erosive power. 水便有了一股新的、更强的侵蚀力

Today caves remain the least explored places on Earth.
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Today caves remain the least explored places on Earth. 今天 洞穴仍是地球上 人类最少涉足的地方

Here, live some of the strangest and least-known animals on the planet.
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Here, live some of the strangest and least-known animals on the planet. 这里住着一些地球上最奇异 和最鲜为人知的动物

Yet these depths were first explored only two years before man landed on the moon.
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Yet these depths were first explored only two years before man landed on the moon. 然而人类直到登月前两年 才第一次进入这个深渊

and form one of the most productive habitats on the planet.
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and form one of the most productive habitats on the planet. 成为地球上一处 最肥沃的野生动物栖息地

to rest and refuel on their long migratory journeys.
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to rest and refuel on their long migratory journeys. 并在此休整 准备继续长途迁徙

Iguassu Falls on the border of Brazil and Argentina
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Iguassu Falls on the border of Brazil and Argentina 位于巴西和阿根廷边境的伊瓜苏瀑布

In these murky waters they rely on sonar to navigate and hunt.
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In these murky waters they rely on sonar to navigate and hunt. 它们利用回声定位 在昏暗的水中探路和捕食

On its way the system drains a third of South America.
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On its way the system drains a third of South America. 全部流域面积达到南美洲的1/3

80 percent of its species are found nowhere else on Earth,
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80 percent of its species are found nowhere else on Earth, 湖里80%的物种 在地球上其它地方都不存在