been

457 篇文章
of what life may have been like for some of those ancient mammals.
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of what life may have been like for some of those ancient mammals. 古代哺乳动物可能的生活形态

ancient may mammals those what like life some been for of have
has been raging for millions of years...
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has been raging for millions of years... 已经持续了数百万年

raging millions been has for of years
Spiders had been around for over 100 million years...
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Spiders had been around for over 100 million years... 当时蜘蛛已经存在超过一亿年

spiders had around million been for over years
have been one of nature's greatest spectacles for millions of years.
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have been one of nature's greatest spectacles for millions of years. 这样的聚集 一直是自然界最壮丽的奇观之一

nature's spectacles millions greatest been for of have one years
and have been reaping the rewards.
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and have been reaping the rewards. 尽情收割

reaping rewards been have the and
It's been a desert here since the Triassic Period.
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It's been a desert here since the Triassic Period. 从三叠纪开始 这里就是一片沙漠

triassic period desert here since been it's the a
the Earth's continents had been converging,
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the Earth's continents had been converging, 地球的大♥陆♥一直在汇聚

converging had earth's continents been the
have been annihilated.
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have been annihilated. 被彻底毁灭

annihilated been have
Never had their survival been so important.
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Never had their survival been so important. 其生存从未如此重要

had important survival their been never so
has been a feature of life on Earth for hundreds of millions of years.
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has been a feature of life on Earth for hundreds of millions of years. 数亿年来 一直是地球生命的特点

feature hundreds millions life been has for of earth on years a