砧骨

例句：

1. 1. The surgeon used a scalpel to make an incision on the patient's ribs.
   外科医生用一把手术刀在病人的肋骨上做了一个切口。
2. 2. The doctor performed surgery on the patient's ribs, and the patient was put under anesthesia.
   医生对病人的肋骨进行了手术，病人被麻醉了。
3. 3. The surgeon removed the ribs and fixed them with metal plates.
   外科医生移除了肋骨并用金属板固定。