用“extinction rate”造句大全，extinction rate造句

国语站造句 2.8W

Creatures less useful or adaptable get short shrift: the extinction rate is running far higher than during normal geological periods.

"If mammals and birds are typical, then the documented extinction rate over the past century has been running 100 to more like 1 000 times above the average background rate in the fossil record.

TAG标签：rate 造句 extinction #

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用“extinction rate”造句大全，extinction rate造句

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