scars

例句：

1. 1. She had a scar on her left shoulder from an old injury.
   她左肩有个旧伤疤。
2. 2. The scar on his face was caused by a childhood accident.
   他脸上的疤痕是童年事故造成的。
3. 3. He carefully removed the scar with tweezers and cleaned it with rubbing alcohol.
   他用镊子小心地拔去疤痕，并用酒精擦拭。