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.
分词翻译
生态的英语翻译：
zoology
系的英语翻译：
attach; fasten; tie; corollary; series; system; department; feel anxious relate to 【计】 Coset 【医】 series; system; systema 【经】 ratio control
