bob-sleigh
/ˈbɔbsleɪ; `bɑbsle/ (also bob-sled/ -sled;-ˌslɛd/) n large racing sledge for two or more people, with brakes, a steering-wheel and two sets of runners 大雪橇（竞赛用, 供两人或两人以上乘坐, 上面有制动器、方向盘和两组滑橇）
a two-/four-man bob-sleigh 两人[四人]雪橇. bob-sleigh, v [I]
ride in a bob-sleigh 乘雪橇.