How to say "定是那日去园子" (dìng shì nà rì qù yuán zi) in Chinese dialogue

dìngshìyuánzi

He must've caught a cold

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0123:13
jiào
zhǔ
guà
xīn

Chief, you need not worry.

LINE 0223:15
PLAYING SCENE
dìng
shì
yuán
zi

He must've caught a cold

LINE 0323:17
chuī
le
fēng

in the garden that day.

Show Information
Source MediaTV Series
Season & EpisodeS1 E16
Timestamp23:15
TMDB ID262932