癜痕

例句：

1. 1. He had a scar on his left arm from the accident.
   他左臂上有一块从事故留下的疤痕。
2. 2. The scar on her face is still visible after all these years.
   她脸上的疤痕在这么多年后依然可见。
3. 3. The doctor advised him to keep the wound clean and avoid scarring.
   医生建议他保持伤口清洁，避免留下疤痕。