laceration of skin

例句：

1. 1. He sustained a deep laceration on his arm while hiking.
   他在徒步旅行时手臂上受了重伤。
2. 2. The soldier had to treat the laceration with antiseptic ointment.
   士兵不得不用抗菌药膏治疗这个伤口。
3. 3. She carefully cleaned the laceration and bandaged it with gauze.
   她仔细清理了伤口并用纱布包扎。