wound tract

例句：

1. 1. The soldier received a wound in the leg during the battle.
   士兵在战斗中腿部受伤。
2. 2. The doctor advised him to keep his wound clean and bandaged.
   医生建议他保持伤口清洁并包扎。
3. 3. The patient's wound was slowly healing after several weeks of treatment.
   病人的伤口经过几周的治疗逐渐愈合。