12 篇文章
Billions of years earlier,
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Billions of years earlier, 数十亿年前

For billions of years,
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For billions of years, 数十亿年来

continue to support life, just as they have for billions of years.
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continue to support life, just as they have for billions of years. 数十亿年如一日 持续支撑着生命

life took billions more years to develop real complexity.
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life took billions more years to develop real complexity. 又花了数十亿年 才发展出真正的复杂性

The earth counts time in billions of years.
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The earth counts time in billions of years. 地球以亿为单位计算时间

These strata are the product of those billions and billions of shells.
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These strata are the product of those billions and billions of shells. 这些地层便是数以亿计的贝壳的产物

And their billions of descendants...
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And their billions of descendants... 以及他们的亿万后代

is created by billions of moving sand grains vibrating against one another.
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is created by billions of moving sand grains vibrating against one another. 是由数十亿沙粒相互振动而产生的

they feed anchovy that gather here in billions.
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they feed anchovy that gather here in billions. 它们是聚集在这里的数十亿条凤尾鱼的食物来源

With billions of ant colonies across the world's grasslands
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With billions of ant colonies across the world's grasslands 数十亿蚁群遍布全球草原