noun🔗Share指关节，关节。 Any of the joints between the phalanges of the fingers."My little brother bumped his knuckle on the edge of the table. "我弟弟的指关节撞到桌子边上了。anatomybodypartphysiologyorganmedicinebiologyhumanChat with AIVocabulary GamePractice Reading
noun🔗Share关节 (by extension) A mechanical joint."The old bicycle's broken knuckle prevented the pedals from turning. "这辆旧自行车的连接处坏了，导致脚蹬没法转动。(Zhè liàng jiù zìxíngchē de liánjiēchù huài le, dǎozhì jiǎodēng méifǎ zhuǎndòng.)technicalmachinepartChat with AIVocabulary GamePractice Reading
noun🔗Share猪蹄，肘子 A cut of meat."The butcher offered a special price on knuckle of pork. "肉店老板说猪肘子特价出售。foodanimalChat with AIVocabulary GamePractice Reading
noun🔗Share袋口护垫弯曲处 The curved part of the cushion at the entrance to the pockets on a cue sports table."The cue ball bounced off the knuckle of the side pocket and landed perfectly for my next shot. "母球撞到侧袋袋口护垫弯曲处，位置很好，方便我打下一杆。sportgameChat with AIVocabulary GamePractice Reading
noun🔗Share牛膝，关节。 The kneejoint of a quadruped, especially of a calf; formerly used of the kneejoint of a human being."The calf's knuckle was stiff after the long hike. "小牛长途跋涉后，膝关节都僵硬了。anatomyanimalbodypartphysiologyChat with AIVocabulary GamePractice Reading
noun🔗Share节，关节 The joint of a plant."The gardener carefully pruned the rose bush, making sure to cut just above a knuckle so new growth would appear. "园丁小心地修剪着玫瑰灌木，确保只在芽节上方剪掉，这样才能长出新的枝条。plantpartChat with AIVocabulary GamePractice Reading
noun🔗Share船体转角，折角处。 A convex portion of a vessel's figure where a sudden change of shape occurs, as in a canal boat, where a nearly vertical side joins a nearly flat bottom."The canal boat's knuckle made it difficult to load the heavy crates efficiently. "运河船的船体转角处使得高效装载重型板条箱变得困难。nauticalarchitecturevehiclesailingChat with AIVocabulary GamePractice Reading
noun🔗Share指节铜套，铁拳套 A contrivance, usually of brass or iron, and furnished with points, worn to protect the hand, to add force to a blow, and to disfigure the person struck; a knuckle duster."brass knuckles"指节铜套weaponbodywearactionitemChat with AIVocabulary GamePractice Reading
noun🔗Share（雪道的）凸起, （雪道的）圆弧。 The rounded point where a flat changes to a slope on a piste."The snowboarder caught some air off the knuckle of the jump, transitioning smoothly from the flat section to the downward slope. "单板滑雪者在跳台的凸起处腾空而起，平稳地从平坦的雪面过渡到下坡。sporttechnicalChat with AIVocabulary GamePractice Reading
verb🔗Share用指关节按压，用指节揉 To apply pressure, or rub or massage with one's knuckles."He knuckled the sleep from his eyes."他用指节揉了揉眼睛，驱散了睡意。bodyactionChat with AIVocabulary GamePractice Reading
verb🔗Share弯指，屈指 To bend the fingers."Before catching the ball, the boy had to knuckle his fingers. "接球之前，那男孩得先弯一下手指。bodyactionanatomyChat with AIVocabulary GamePractice Reading
verb🔗Share叩头，磕头。 To touch one's forehead as a mark of respect."Seeing the general enter the room, the soldiers immediately knuckled their foreheads in respect. "看到将军走进房间，士兵们立刻叩头致敬。cultureritualtraditionbodysignactionChat with AIVocabulary GamePractice Reading
verb🔗Share屈服，让步. To yield."After a long argument, the siblings finally knuckled under and shared the last slice of pizza. "经过长时间的争论后，兄妹俩最终还是屈服了，把最后一块披萨分了。attitudeactionChat with AIVocabulary GamePractice Reading
