投运 tóuyùn to put into operation Origin Definitions Defs Strokes Stroke Words Sentences Sents 投 tóu verb abbreviation of 投入 tóurù to put into To throw or put into; to throw oneself into a situation or environment.运 運 yùn verb abbreviation of 运营 運營 yùnyíng to be in service to be in operation or scheduled runs, especially of transport vehicles like buses, trains, or ships