20世纪，随着化石燃料的大量使用和温室气体水平的持续飙升，气温上升得更快。

Temperatures climbed more rapidly in the twentieth century as the use of fossil fuels proliferated and greenhouse gas levels continued to soar.

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如果进化一直以来都是一个持续的、渐进的过程，人们可能会认为，几乎每年的化石样本都会存在细微的差别。

If evolution had been a continuous, gradual process, one might expect that almost every fossil specimen would be slightly different from every year.

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许多物种似乎在数百万年的化石记录中都保持不变——而这种情况似乎与达尔文的持续变化模型不一致。

Many species appear to remain unchanged in the fossil record for millions of years—a situation that seems to be at odds with Darwin's model of continuous change.

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