bobsleighyoudaoicibaDictYouDict[bobsleigh 词源字典]
"A mechanically steered and braked sledge, typically for two or four people, used for racing down an ice-covered run", Mid 19th century (originally US, denoting a sleigh made of two short sleighs coupled together and used for hauling logs): from bob2 in the sense 'short' + sleigh.[bobsleigh etymology, bobsleigh origin, 英语词源]