How to say "我在心底暗自立下誓言" (wǒ zài xīn dǐ àn zì lì xià shì yán) in Chinese dialogue

zàixīnànxiàshìyán

I secretly swore to myself

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0121:51
chǔ
gān
jìng
le

clean it up.

LINE 0221:54
PLAYING SCENE
zài
xīn
àn
xià
shì
yán

I secretly swore to myself

LINE 0321:57
dìng
yào

that I must not let

Show Information
Source MediaTV Series
Season & EpisodeS1 E30
Timestamp21:54
TMDB ID272715