n. 赛马会

n any competition

n a contest of speed

n people who are believed to belong to the same genetic stock

n (biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species

n the flow of air that is driven backwards by an aircraft propeller

n a canal for a current of water

v move fast

v compete in a race

v to work as fast as possible towards a goal, sometimes in competition with others

v cause to move fast or to rush or race