病毒式营销 bìngdúshìyíngxiāo viral marketing Origin Definitions Defs Strokes Stroke Words Sentences Sents 病毒 bìngdú noun virus a type of tiny microorganism that causes infection and can only reproduce inside the living cells of a host式 shì affixnoun type (bound form) type; form; pattern; style; standard营销 營銷 yíngxiāo nounverb marketing the action or business of promoting and selling products or services