How to say "这可是桩大事" (zhè kě shì zhuāng dà shì) in Chinese dialogue

zhèshìzhuāngshì

that's a major undertaking.

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0137:07
gēng

Master Geng,

LINE 0237:09
PLAYING SCENE
zhè
shì
zhuāng
shì

that's a major undertaking.

LINE 0337:12
mín
guó
èr
shí
nián

Since the 27th Year of the Republic,

Show Information
Source MediaTV Series
Season & EpisodeS1 E21
Timestamp37:09
TMDB ID309609