How to say "已成既定事实" (yǐ chéng jì dìng shì shí) in Chinese dialogue

chéngdìngshìshí

Since it's already the truth,

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0107:32
guò
lái
gěi
zán
men
jiǎng
xiōng
de
jiǎng
zuò

is coming to give us a talk on breast care.

LINE 0207:36
PLAYING SCENE
chéng
dìng
shì
shí

Since it's already the truth,

LINE 0307:38
guāng
tīng
yǒu
shén
me
yòng

what's the use of listening to the talk?

Show Information
Source MediaTV Series
Season & EpisodeS1 E8
Timestamp07:36
TMDB ID309663