noun 下载 🔗分享 U型夹，U形卸扣。 A U-shaped coupling having holes at each end, through which a bolt is run; used especially to fit attachments to a tractor or other vehicle as it allows a degree of rotation about the bolt. Examples : "The farmer attached the new plow to the tractor using a clevis. " 农民用U型夹将新犁连接到拖拉机上。 technical machine vehicle part agriculture 与AI对话词汇游戏阅读练习
