Cómo usar "如果哪天" (rú guǒ nǎ tiān) en el diálogo chino

guǒtiān
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0122:59
ér
qiě
wán
hěn
kāi
xīn
LINE 0223:03
PLAYING SCENE
guǒ
tiān
LINE 0323:05
zhēn
de
xiǎo
xīn
shàng
le
fán
Show Information
Source MediaTV Series
Season & EpisodeS1 E7
Timestamp23:03
TMDB ID206494