bobsledding

1.Bobsledding involves descending down an icy track in a bobsled cart with two or four people sitting inside.

车比赛是由二或四在车内由冰道内滑下。

2.The course used is similar to that employed in bobsledding, and speeds above 60 mph (100 kph) are not uncommon.

所用的赛道类似有舵橇滑运动，100公里以上的时速并不少见。