名詞 whippletree:

1. a crossbar that is attached to the traces of a draft horse and to the vehicle or implement that the horse is pulling
   同義詞：whiffletree, swingletree

whip.ple.tree

n.Upper Northern U.S. （名詞）【美國(guó)北端】
See whiffletree See Regional Note at whiffletree
參見(jiàn) whiffletree參見(jiàn) whiffletree

來(lái)源：
Perhaps blend of dialectal whippin [whippletree]
可能混合了 方言 whippin [車前橫木]
swingletree
swingletree