近年以来，已有科学家报告说发现了土地中能分解塑料的细菌。

Already scientists in recent years have reported discovering bacteria that dissolve plastic.

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但科学家报告说，更有力的证据时，合并的结果，四个主要的研究迄今所做。

But scientists reported that the evidence was stronger when they combined the results of the four major studies done so far.

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科学家去年报告说，罕见情况的“幸运组合”已经使珊瑚从灾难中复原。

Last year scientists reported that a "lucky combination" of rare circumstances had allowed the coral to recover from the disaster.

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