infrasternal

例句：

1. 1.He was hit by a car and suffered an injury to his infrasternal area.
   他被车撞了，他的胸部下方受伤了。
2. 2. The doctor examined the patient's infrasternal area for signs of infection.
   医生检查了病人的胸部下方是否有感染的迹象。
3. 3.During the surgery, the surgeon made an incision below the patient's infrasternal area.
   在手术过程中，外科医生在病人的胸部下方做了一个切口。