Oil is the remains of ancient organisms in formation through the hundreds of millions of years of evolving changes.

石油是远古时代生物的遗体在地层中经过几亿年的变化而逐渐形成的。

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Oil is the remains of ancient organisms in formation through the hundreds of millions of years of evolving changes.

石油是远古时代生物的遗体在地层中经过几亿年的变化而逐渐形成的。

youdao