傳染來源 chuánrǎnláiyuán 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来源 來源 láiyuán noun source source; origin; the place where something begins or comes from
