How to say "行风月之事" (xíng fēng yuè zhī shì) in Chinese dialogue

xíngfēngyuèzhīshì

behind my back.

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0137:51
zài
hòu
chǔ
zhì
gōng
shì
de
fáng
zhōng

had an affair in the back offices

LINE 0237:55
PLAYING SCENE
xíng
fēng
yuè
zhī
shì

behind my back.

LINE 0337:58
rén
mào
rán
shì

You bring this up so suddenly.

Show Information
Source MediaTV Series
Season & EpisodeS2 E21
Timestamp37:55
TMDB ID124595