had

380 篇文章
Mammals had a long way to go to become masters of the world's oceans,
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Mammals had a long way to go to become masters of the world's oceans, 哺乳动物想要成为海洋的主宰 还有很长的路要走

Although they had conquered the land,
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Although they had conquered the land, 虽然哺乳动物征服了陆地

there rose from the ashes a life-form that had previously only survived
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there rose from the ashes a life-form that had previously only survived 一种此前只在边缘地带幸存的生物

the warm, wet conditions in which they had thrived began to change.
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the warm, wet conditions in which they had thrived began to change. 曾令它们兴旺发展的暖湿条件 开始发生变化

They also had brain power.
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They also had brain power. 它们还拥有脑力

able to hide in holes, had survived.
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able to hide in holes, had survived. 藏在洞中 幸存下来

The asteroid had inflicted devastating losses on the mammals...
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The asteroid had inflicted devastating losses on the mammals... 小行星碰撞 对哺乳动物造成毁灭性的打击

forests had regrown and carpeted much of the land.
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forests had regrown and carpeted much of the land. 森林已重新生长并覆盖大部分陆地

But one remarkable dynasty has had a greater impact than any other.
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But one remarkable dynasty has had a greater impact than any other. 但有一个非凡的王朝 比其他任何王朝都更具影响力

Other survivors of the asteroid had also been evolving.
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Other survivors of the asteroid had also been evolving. 小行星撞击的其它幸存者也在进化