单词 | bacteria bed |
释义 | bacteria bed (once / 11819311 pages) n WORD FAMILY bacteria bed: bacteria beds n layer of sand or gravel used to expose sewage effluent to air and the action of microorganisms Hyper filter device that removes something from whatever passes through it |
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英语词典包含147318条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。