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de·com·pos·er AHD[dē'kəm-pōʹzər] D.J.[ˌdiːkəmˈpəʊzə]K.K.[ˌdikəmˈpozɚ]n.Ecology（名词）【生态学】- An organism, often a bacterium or fungus, that feeds on and breaks down dead plant or animal matter, thus making organic nutrients available to the ecosystem.腐生菌；腐生物：一种有机物，通常是细菌以死的动植物为食并把它们分解，藉此为生态系统提供有机养分
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