costalis

例句：

1. 1. He had a sternum fracture after the accident.
   事故后他胸部骨折。
2. 2.The sternum is where the ribs meet the chest wall.
   胸骨是肋骨与胸壁接触的地方。
3. 3. Sternal resection is a common surgical procedure for treating bone cancer.
   胸骨切除术是治疗骨癌的常见手术方法。