These episodes of rapid evolution are separated by relatively long static spans during which a species may hardly change at all.

这些快速进化的阶段被相对较长的静态跨度分隔开来，在此期间，一个物种几乎不会发生任何变化。

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Slow, continuous change may be the norm during periods of environmental stability, while rapid evolution of new species occurs during periods of environment stress.

缓慢的、持续的变化可能是环境稳定时期的常态，而新物种的快速进化发生在环境压力时期。

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The report shows a rapid evolution of flavour dynamics in the global beverage market.

这份报告还展示了在国际饮料市场中口味剧烈的动态演变。

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But there is no doubt that the rapid evolution of his views into the limelight was not intelligent design.

BBC: Hope and change for the Obama campaign?

We are seeing not just an economic crisis of global proportions but the very rapid evolution of the whole international financial architecture.

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Though it now transmitted data at 10 megabits per second, the rapid evolution of personal computing meant it was becoming a bottleneck.

ECONOMIST: CASE HISTORY: Out of the ether | The