Correct

羞于启齿

/ xiū yú qǐchǐ / 
Strokes

Definition

to be too shy to speak one's mind (idiom)

Example

Definition

can't say (sth) for shame; be too bashful to mention

1
Tā
他
xiǎng
想
yāo
约
tā
她
  
,
dàn
但
xiūyúqǐchǐ
羞于启齿
  
。

He wanted to ask her for a date, but shyness always held him back.