periosteal

例句：

1. 1.The surgeon removed the bone from the patient's leg.
   外科医生从病人腿上取出了骨头。
2. 2. The bone was exposed to the air for several hours.
   骨头暴露在空气中几个小时。
3. 3. The bone healed quickly after the surgery.
   手术后骨头很快愈合了。