How to say "会不由自主地僵硬收缩" (huì bù yóu zì zhǔ dì jiāng yìng shōu suō) in Chinese dialogue

huìyóuzhǔjiāngyìngshōusuō

involuntarily stiffens and tightens.

Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0133:49
liǎn
shàng
de

the skin on their face

LINE 0233:50
PLAYING SCENE
huì
yóu
zhǔ
jiāng
yìng
shōu
suō

involuntarily stiffens and tightens.

LINE 0333:52
wèi
le
zhē
yǎn
huì
lòu
chū
shí
de
jiǎ
xiào

To hide it, they display inappropriate forced smiles.

Show Information
Source MediaTV Series
Season & EpisodeS2 E1
Timestamp33:50
TMDB ID124595