wound roller

例句：

1. 1. The wound roller is used to help the patient heal faster.
   伤口滚轮用于帮助患者更快地愈合。
2. 2. The nurse carefully applied the wound roller to the wound.
   护士小心翼翼地将伤口滚轮贴在伤口上。
3. 3. The doctor recommended using a wound roller to reduce swelling and pain.
   医生建议使用伤口滚轮以减少肿胀和疼痛。