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They looked at several sources of infection, of which contaminated feed was the most likely.
调查人员检测了一些最可能引发喂养感染的病原.
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Q. How can healthcare facilities eliminate sources of infection and transmission within their facilities?
医疗机构应如何消除机构内的传染源和传播途径?
英汉翻译词典包含4367426条英汉汉英翻译词条，基本涵盖了全部常用英语单词及常用语的翻译及用法，是英语学习的有利工具。