ball-joint

常见例句

Worse, he fractured his hip so badly that the ball of the ball-and-socket joint broke off.
更糟的是，髋部严重骨折，导致股骨头从球窝关节脱出。
Cast ball-and-socket joint is used as the column support, while circular hollow section welded joint is used at the top of the tube.
北京奥运会老山自行车馆的屋顶采用了双层球面网壳结构，柱脚及柱顶分别采用了铸钢球铰支座和圆钢管相贯节点。
This term refers to some young women who spend a lot of time with ball-joint dolls. They "adopt"(buy) dolls and treat them like their own kids.
这个短语指的是一些将大量时间花费在关节娃娃上面的年轻女士，她们购买一些洋娃娃，当作自己的孩子对待。
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