ball-and-socket造句

例句与造句

1. Ball - and - socket joint
   肩,膝等的球状关节
2. Shoulder ball - and - socket joint
   杵臼关节
3. Ball - and - socket bearing
   球窝轴承
4. It's difficult to find ball-and-socket in a sentence. 用ball-and-socket造句挺难的