赤膊上阵 chìbóshàngzhèn to go into battle bare-chested Origin Definitions Defs Strokes Stroke Words Sentences Sents 赤膊 chìbó bare-chested to be bare to the waist; to have a naked upper body上阵 上陣 shàngzhèn to go into battle to go to the battlefield; to take part in combat