buff-duff

例句：

1. 1. After the accident, I applied the buff-duff to my wound to help it heal faster.
   事故后，我用擦伤膏涂抹伤口以帮助它更快地愈合。
2. 2. The doctor prescribed a special buff-duff for my burn.
   医生给我开了一种特殊的擦伤膏来治疗我的烧伤。
3. 3.The old man used buff-duff on his knees every night before going to bed.
   老人每晚睡前用擦伤膏抹在膝盖上。