| 单词 | opportunistic microorganism | 
| 释义 | opportunistic microorganism [¦äp·ǝr´tü¦nis·tik ¦mī·krō`ȯr·gǝ´niz·ǝm]  MICROBIOLOGY A normally harmless endogenous microorganism that produces disease due to fortuitous events that affect the host.  | 
	
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