有令人信服的证据表明，全球变暖将是本世纪许多动植物灭绝的一个重要原因。

There's compelling evidence that global warming will be a significant driver of many plant and animal extinctions in this century.

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这些湖干了随着当地气候的变化，许多生活在这里的动植物灭绝了。

These lakes later dried up as the local climate changed, and many of the plants and animals living here went extinct.

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在社会发生重大变革之前，人们在保护动植物灭绝方面没有作出任何努力的问题几乎没有听说过。

Prior to the substantial changes occurred in society, that far too little had been done to prevent animals and plants from dying out was virtually unheard of.

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