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	saudi saudi saudi arabia saudi arabian sauerbraten sauerkraut sauger saugh saught sauk saul sauld saulie sault saulteur saumont sauna saunderswood saunter saunterer saunteringly saur- saur saura saura

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