疮疤

例句：

1. 1. He had a scar on his forehead from the accident.
   他额头上有一块伤疤，是那次事故留下的。
2. 2. The scar on her face was visible even in the dark.
   她脸上的伤疤即使在黑暗中也看得出来。
3. 3. She applied a scar cream to her wound to speed up healing.
   她涂上一种疤痕膏来加速伤口的愈合。