for

2064 篇文章
for millions of people...
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for millions of people... 提供了水资源和生计

For 3.8 billion years,
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For 3.8 billion years, 38亿年来

This goby has been climbing for days.
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This goby has been climbing for days. 这只虾虎鱼已经爬了好几天了

Surely an impossible journey for a fish.
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Surely an impossible journey for a fish. 对鱼来说 无疑是一处不可能的目的地

but for those that do, there can be great rewards.
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but for those that do, there can be great rewards. 但风险越高 收益越高

where freshwater has lain for millions of years.
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where freshwater has lain for millions of years. 淡水数百万年不间断的存在

They won't be able to fly for another six weeks...
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They won't be able to fly for another six weeks... 雏鸟六周后才能飞行

And for some, now is the perfect time to raise a family.
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And for some, now is the perfect time to raise a family. 对于一些动物来说 现在是组建家庭的绝佳时机

the deer's desperate need for freshwater.
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the deer's desperate need for freshwater. 鹿对于淡水的迫切需求

A single adult would be enough to feed him for the entire dry season.
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A single adult would be enough to feed him for the entire dry season. 只需捕食一只成年鹿 便足够沼泽鳄度过整个旱季