K 开头单词
knuckler n. 慢速变化球（等于knuckle ball）；弹子（一种游戏）；水压机操作工
knuckleprint 指横纹
knucklepin n.接关插销
knucklejoint n.肘形接头
knuckleheaded adj.愚笨无知的
knucklehead n. 蠢人； 傻瓜
knucklegearing n.圆齿齿轮装置
knucklegear n.圆齿齿轮
knuckleduster n.指节铜套
knuckled n.指关节；膝关节；肘形接头；铰链连接v.以指节压；屈从；开始努力工作
knucklebones n.指节骨名词knucklebone的复数形式.
knucklebone n.指关节骨；膝节骨
knuckleballer n.[棒]不旋转球投手
knuckleball n.[棒](投手投出的)不旋转球
knuckle-walk n.跖走
knuckle-tooth 圆弧顶面齿
knuckle-pin nut [机械工程]肘销螺母
knuckle-pin cover 关节销盖