presternal

例句：

1. 1. He had a presternal pain in his chest.
   他胸部有疼痛。
2. 2.The doctor examined the patient's presternal area for signs of infection.
   医生检查了病人的胸骨区域，寻找感染的迹象。
3. 3. During surgery, the surgeon made a small incision in the patient's presternal skin.
   手术期间，外科医生在病人的胸骨皮肤上做了一个小切口。