赛道 sàidào racecourse Origin Definitions Defs Strokes Stroke Words Sentences Sents sàidào racecourse 赛 賽 sài noun competition (bound form) a match; a contest; a tournament道 dào noun road road; path; waysàidào market segment 赛 賽 sài noun competition (bound form) a match; a contest; a tournament道 dào noun channel channel; conduit; passage (e.g. for water, air, or biological fluids)