free skin flap

例句：

1. 1.The surgeon used a free skin flap to cover the wound.
   外科医生使用游离皮瓣来覆盖伤口。
2. 2. The patient had a free skin flap transferred from his arm.
   患者从手臂转移了一个游离皮瓣。
3. 3. The operation was successful, and the patient was discharged with a free skin flap in place.
   手术成功，患者带着一个游离皮瓣出院。