been

457 篇文章
Its design has been fine-tuned over millions of years.
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Its design has been fine-tuned over millions of years. 它的设计经过了数百万年的精心调整

fine-tuned design millions been has of its over years
land has been inhospitable to life.
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land has been inhospitable to life. 陆地都不适于生命居住

inhospitable land life been has to
plankton had been the catalyst for animal life.
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plankton had been the catalyst for animal life. 浮游生物是动物生命的催化剂

catalyst plankton had life been animal for the
It's a hunting technique that has been honed over millions of years.
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It's a hunting technique that has been honed over millions of years. 这是一种经过数百万年 得以完善的捕猎技巧

honed technique millions hunting been has of it's that over years a
and have been feared ever since.
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and have been feared ever since. 自那以来 一直威名显赫

feared ever since been have and
In the story of life, armor has been such a success
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In the story of life, armor has been such a success 在生命的故事中 护甲是如此成功

armor story success such life been has of in the a
Volcanoes had been erupting for millions of years.
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Volcanoes had been erupting for millions of years. 火山已经喷发了数百万年

had erupting volcanoes millions been for of years
Under the dinosaurs, they had been a mere footnote in history.
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Under the dinosaurs, they had been a mere footnote in history. 与恐龙相比 它们只是历史上的一个注脚

footnote dinosaurs history had under mere been they in the a
The world has rarely been stable.
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The world has rarely been stable. 地球很少呈稳定状态

stable rarely been has world the
Throughout history, volcanoes have been one of the greatest agents of change.
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Throughout history, volcanoes have been one of the greatest agents of change. 纵观历史 火山一直是最大的变化因素之一

agents history volcanoes throughout change greatest been of have the one