joint of head of rib

例句：

1. 1. The joint of the bone is where it connects to the muscle.
   骨头的接合处是它与肌肉连接的地方。
2. 2. The carpenter used a chisel to join the pieces together.
   木匠用凿子将两块木料连接起来。
3. 3. The joint between the two pieces was weak and prone to cracking.
   两块材料之间的接合处很弱，容易开裂。