wound margin

例句：

1. 1.The wound margin was so thin that it could barely hold together.
   伤口边缘太薄了，几乎无法粘合。
2. 2. The doctor carefully examined the wound margins to make sure they were clean.
   医生仔细检查伤口边缘，确保它们干净。
3. 3. The patient's wound margins were healing well, which is a positive sign.
   患者的伤口边缘正在良好愈合，这是一个积极的迹象。