传染源 chuánrǎnyuán source of infection Definitions Defs Origin Strokes Stroke Words Sentences Sents 传染 傳染 chuánrǎn verb to infect; contagious to infect; to be contagious; (of a disease) to spread from one organism to another源 yuán noun origin (bound form) root; origin; the starting cause or basis of something
