How to say "怎会在大事上犯糊涂呢" (zěn huì zài dà shì shàng fàn hú tú ne) in Chinese dialogue

zěnhuìzàishìshàngfànne

Why would I commit such a grave blunder?

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0118:18
dàn
zhǐ
shì
xiōng
jiān
de

they were merely brotherly quarrels.

LINE 0218:21
PLAYING SCENE
zěn
huì
zài
shì
shàng
fàn
ne

Why would I commit such a grave blunder?

LINE 0318:24
wáng

Father,

Show Information
Source MediaTV Series
Season & EpisodeS2 E27
Timestamp18:21
TMDB ID124595