bobsleigh
noun (British English)(also bob)
a racing sledge (= a vehicle for two or more people that slides over snow) 大雪橇(供两人或以上比赛用) Topics Sports: other sportsc2Word Originmid 19th cent. (originally US, denoting a sleigh made of two short sleighs coupled together and used for hauling logs): from bob in the sense ‘short’ + sleigh.