Correct

只字不提

/ zhī zì bù tí / 
Strokes

Definition

not to mention (idiom); to say not one word/fig. to omit mention (of a non-person or embarrassing topic)/to censor

Example

Definition

not say a single word about sth; not so much as mention sth; be silent about sth; say nothing about sth

1
Guānyú
关于
dùjià
度假
de
的
shì
事
tā
他
duì
对
wǒmen
我们
zhīzìbùtí
只字不提
  
。

He didn't tell us a thing about his holiday.