单词 | ball-and-socket joint |
释义 | ball-and-socket joint ˌball-and-ˈsocket joint noun [C] SPECIALIZED ► F0 a joint (= place where two bones are connected) consisting of a round end and a hollow socket that fit together and move easily: » The hip joint is a ball-and-socket joint.Thesaurus+: ↑Bone structures |
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