years

360 篇文章
and Dunkleosteus had reigned for 20 million years.
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and Dunkleosteus had reigned for 20 million years. 邓氏鱼已经统治了2000万年

dunkleosteus reigned had million for and years
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
They first appeared more than 400 million years ago
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They first appeared more than 400 million years ago 它们最早出现在四亿多年前

appeared than million more first they ago years
Seventy million years after the great melt,
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Seventy million years after the great melt, 大融化7000万年之后

great million melt after seventy the years
200,000 years after the big freeze,
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200,000 years after the big freeze, 大冰冻的20年之后

freeze big after the years
It first evolved hundreds of millions of years ago,
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It first evolved hundreds of millions of years ago, 最早在数亿年前进化

evolved hundreds millions first it of ago years
One that would last for 200,000 years.
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One that would last for 200,000 years. 这个时期将持续20万年

would for that last one years
Twenty million years later, life faced one of its greatest challenges...
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Twenty million years later, life faced one of its greatest challenges... 2000万年后 生命面临又一个巨大的挑战

later twenty challenges life million greatest faced of its one years
Forty million years later, and a new era of life has begun,
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Forty million years later, and a new era of life has begun, 四千万年后 一个新的生命纪♥元♥开始

era begun later forty life million new has of and years a
And in the tropical shallows 508 million years ago,
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And in the tropical shallows 508 million years ago, 在5.08亿年前的热带浅海中

shallows tropical million in the and ago years