sternal synchondroses

例句：

1. 1. The patient's chest wasseverely injured during the accident.
   患者在事故中胸部严重受伤。
2. 2. The doctor performed a sternaljoint replacement surgery on the patient.
   医生为患者进行了胸骨关节置换手术。
3. 3. The sternal joint is responsible for supporting the weightof the upper body and allowing movement.
   胸骨关节负责支撑上身的重量并允许运动。