noun🔗Share手腕，腕部 The complex joint between forearm bones, carpus, and metacarpals where the hand is attached to the arm; the carpus in a narrow sense."She wore bracelets on both her wrists. "她在两只手腕上都戴了手镯。bodyanatomypartmedicinephysiologyorganhumanChat with AIVocabulary GamePractice Reading
noun🔗Share轴颈，轴销 A stud or pin which forms a journal."The wrists on the old printing press needed oiling, as they were squeaking with each rotation. "老式印刷机上的轴颈需要上油了，因为它们每次转动都会发出吱吱的响声。partmachinetechnicalChat with AIVocabulary GamePractice Reading
