单词	ball-and-socket joint
释义	ball-and-socket joint noun : a joint in which a ball moves within a socket so as to admit of rotary motion in every direction within certain limits (as the hip joint) — called also ball joint
随便看	apodous apodyterium apoenzyme apoferritin apogaeic apogaic apogalacteum apogametic apogamic apogamically apogamous apogamously apogamy apogeal apogean apogee apogeic apogenous apogeny apogeotropic apogeotropically apogeotropism apogon apogon apogonid

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