It happens millions of years later.

它发生在数百万年之后。

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Millions of years may pass between eruptions.

两次喷发之间可能过去了数百万年。

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A horse had fourteen toes in total millions of years ago.

几百万年前，马总共有14个脚趾。

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Many of the lakes around the Grand Tetons were formed millions of years ago by slow-moving sheets of ice.

VOA: special.2009.02.16

We have certain instincts that are there and have been formed either God-given or evolutionary-given for millions of years that have been formed.

我们有生而有之的本能,或上天赐与或经几百万年,在进化中形成。

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It's happened over the course of millions of years of human evolution, but it's happened also in a relatively recent time frame when we think about the American diet and what people are eating, but also the world diet of course.

它们发生在人类数百万年的演化历程中,在近现代,当我们考虑美国人的食谱,当然也包括全世界的食谱,同样在发生着这些变革

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"These are ecosystems that have evolved over millions and millions of years, " said Knights.

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Sharks existed before there were dinosaurs and they pre-date humans by millions of years.

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Over millions of years, no bacteria are known to have developed resistance to this mechanism.

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