三七开 sānqīkāi 30-70 split Origin Definitions Defs Strokes Stroke Words Sentences Sents 三 sān numeral three the number three; 3七 qī numeral seven seven; 7; (banker's numeral) 柒 qī开 開 kāi ratio used between digits to express a ratio between the two parts (e.g. 三七开 sānqīkāi for 3:7)