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4391 篇文章
battle their way for hundreds of miles upstream.
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battle their way for hundreds of miles upstream. 奋力逆流而上数百英里

but every year some of the world's high rivers are crowded by millions of visitors.
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but every year some of the world's high rivers are crowded by millions of visitors. 而世界上的高山河流每年都将 迎接成千上万的来访者

Black fly larvae anchor themselves with the ring of hooks,
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Black fly larvae anchor themselves with the ring of hooks, 蚋的幼虫靠钩环固定自己

In their upper reaches, mountain streams are full of energy.
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In their upper reaches, mountain streams are full of energy. 上游地段的山涧充满活力

it will travel hundreds of miles to the sea.
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it will travel hundreds of miles to the sea. 行程数百英里回到大海

Such is the height of these falls
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Such is the height of these falls 具有如此这般高度的瀑布

the source of all fresh water.
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the source of all fresh water. 这便是所有淡水的来源

There is a tropical downpour here almost every day of the year.
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There is a tropical downpour here almost every day of the year. 这里全年几乎每天都会降下热带暴雨

Here, strange towers of sandstone have been sculptured over the millennia by battering wind and torrential rain.
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Here, strange towers of sandstone have been sculptured over the millennia by battering wind and torrential rain. 这里伫立着数千年来暴风骤雨 雕凿成的奇形怪状的石塔

Moisture rising as water vapour from the surface of the sea
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Moisture rising as water vapour from the surface of the sea 水蒸发成水蒸气从海面升起