How to say "但是不知道为什么" (dàn shì bù zhī dào wèi shén me) in Chinese dialogue

dànshìzhīdàowèishénme

But I don't know why

Idioms & Colloquial Expressions
INTERACTIVE SCRIPT TIMELINE
LINE 0122:34
hěn
lěng

and so cold.

LINE 0222:38
PLAYING SCENE
dàn
shì
zhī
dào
wèi
shén
me

But I don't know why

LINE 0322:42
kàn
zhe

I feel at ease

Show Information
Source MediaTV Series
Season & EpisodeS1 E29
Timestamp22:38
TMDB ID278275