just

1221 篇文章
and they don't just happen in the grasslands.
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and they don't just happen in the grasslands. 这不仅仅发生在草原上

happen grasslands just don't they in the and
But just as some mammals evolved to feed on the grass,
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But just as some mammals evolved to feed on the grass, 但在一些哺乳动物 进化成以草为食的同时

evolved grass mammals just feed some as the to but on
But that was just the beginning.
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But that was just the beginning. 但这还只是一个开始

was just beginning that the but
But just as their ancestors were beginning to make progress,
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But just as their ancestors were beginning to make progress, 但正当它们的祖先开始取得进展时

ancestors progress make just their beginning as to but were
And it's still just as important today.
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And it's still just as important today. 这在今天依然非常重要

important today just it's as still and
just as they were 15 million years ago.
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just as they were 15 million years ago. 与1500万年前别无二致

million just they as were ago years
they've evolved to hover just like insects...
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they've evolved to hover just like insects... 它们进化出像昆虫一样的悬停能力

hover evolved insects like just they've to
But just five million years after the asteroid,
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But just five million years after the asteroid, 但是在小行星撞击之后仅500万年

asteroid million just five after the but years
just a few million years after the impact,
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just a few million years after the impact, 在撞击发生后仅几百万年

impact million few just after the years a
just as birds did millions of years ago.
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just as birds did millions of years ago. 就像数百万年前的鸟类那样

did millions birds just of as ago years