Correct

一笔抹杀

/ yī bǐ mǒshā /
Strokes

Definition

to blot out at one stroke/to reject out of hand/to deny without a hearing

Example

Definition

blot out at one stroke; condemn out of hand; totally and indiscreetly negate

1
zhèyàng
这样
zuò
zǒng
yǒu
de
dàoli
道理
  
,
néng
shā
一笔抹杀
  

He must have good reasons for doing so. You can't just dismiss it with a wave of the hand.

2
shā
一笔抹杀
mǒurén
某人
de
yōudiǎn
优点

deny sb's merit completely