1. A wedge or key that fits into a groove to make a joint.
   加强肋作为连接物填入槽内的楔形物或舌状物
2. She bought her baby a jointed doll.
   她给她的宝宝买了一个关节可活动的娃娃。
3. The two parts of the pipe have separated at the joint.
   这个管子从接口处分成两截了.
4. You should limber up your muscles and joints.
   你应该舒展一下筋骨。
5. The screw has worked out of the joint.
   螺丝从接合处脱了出来。

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