| 单词 | nonpersistent | 
| 释义 | nonpersistentadjective  non·per·sis·tent  ˌnän-pər-ˈsi-stənt   -ˈzi-     : not persistent: such as    a     : decomposed rapidly by environmental action  nonpersistent insecticides    b     : capable of being transmitted by a vector for only a relatively short time  nonpersistent viruses    | 
	
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