primary wound tract

例句：

1. 1. The patient's primary wound was treated with antibiotics and dressings.
   病人的初级伤口用抗生素和敷料治疗。
2. 2. The research team identified the primary trauma as a fall from a height.
   研究团队将主要创伤识别为从高处跌落。
3. 3. The primary injury sustained in the accident required immediate medical attention.
   事故中遭受的主要伤害需要立即医疗关注。