11 篇文章
During this period,
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During this period, 在这个时代

Our story begins in the Cretaceous period...
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Our story begins in the Cretaceous period... 故事开始于白垩纪

It's the dawn of the Jurassic period.
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It's the dawn of the Jurassic period. 侏罗纪时代初期

Sustained volcanic eruptions caused another period of global warming.
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Sustained volcanic eruptions caused another period of global warming. 持续的火山喷发引起又一轮全球变暖

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

The start of the Triassic Period...
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The start of the Triassic Period... 三叠纪开始

During the period known as the Carboniferous,
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During the period known as the Carboniferous, 在石炭纪

in a period known as the Devonian,
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in a period known as the Devonian, 进入泥盆纪时期

A period which allowed one group to become the mightiest of dynasties.
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A period which allowed one group to become the mightiest of dynasties. 这个时期 令一个物种群建立了最强大的王朝

But there was one period
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But there was one period 但曾经有一个时期