preputial ring

例句：

1. 1.The doctor prescribed a preputial ring to treat his condition.
   医生给他开了一个阴囊环来治疗他的病。
2. 2.The patient was advised to wear a preputial ring during sexual activity.
   病人被建议在性行为时佩戴一个阴囊环。
3. 3. The preputial ring was removed after the surgery, and the patient recovered quickly.
   手术后取下了阴囊环，病人很快就康复了。