在线词典一笔抹杀比喻轻率地把成绩、优点全部否定。拼音yī bǐ mǒ shā解释比喻轻率地把成绩、优点全部否定。近义词一笔抹煞、一笔勾销英文释义to blot out at one stroke; to reject out of hand; to deny without a hearing