How to say "那一定是势在必行" (nà yí dìng shì shì zài bì xíng) in Chinese dialogue

dìngshìshìzàixíng

it must be absolutely necessary,

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0126:09
xiǎng
guǒ
zuò
le
zhè
ge
xuǎn

I think since you've made this choice,

LINE 0226:11
PLAYING SCENE
dìng
shì
shì
zài
xíng

it must be absolutely necessary,

LINE 0326:14
shì
wàn

not just a last resort.

Show Information
Source MediaTV Series
Season & EpisodeS1 E15
Timestamp26:11
TMDB ID279136