相关单词近义词 protuberance 瘤, projection 投影, lump 块, prominence 突出物, bulge 膨胀, knob 旋钮, nub 小肿块, knot 结, knuckle joint 肘形接头, metacarpophalangeal joint 掌指关节临近词Ko, Knox, knucklepin, knucklehead, knucklebone, knuckle end, knuckle arm, knuckle pin, knucklegear, knuckle pad, knuckleball, knuckle hub 返回 knuckles