expunge [ɪkˈspʌndʒ]

例句:

• The experience was something he had tried to expunge from his memory.
  他曾努力将那段经历从记忆中抹去。
  
• The juvenile court may expunge or destroy the records of a juvenile at any time.
  少年法庭可在任何时候删除或者销毁未成年人的记录.
  
• He could not expunge the incident from his memory.
  他无法忘掉这件事.
  
• Certain moments she wanted to expunge completely from his mind.
  来自E. F. Benson
• Once leadership plotting enters the bloodstream of a party, it is very difficult to expunge.
  来自BBC
• I am finally fearful over our society's efforts to expunge melancholia from the system.
  来自SA