上胸骨

例句：

1. 1. The doctor examined the patient's upper sternum for any injuries.
   医生检查了病人的上胸骨，以确定是否有任何伤害。
2. 2. During the surgery, the surgeon had to make a small incision on the patient's uppersternum.
   在手术过程中，外科医生必须在病人的上胸骨上做一个小切口。
3. 3. The patient was taken to the operating room after the upper sternum was removed.
   在移除上胸骨后，病人被送往手术室。