win over
US /wɪn ˈoʊvər/
UK /wɪn ˈoʊvər/

1.
memenangkan hati, meyakinkan
to gain the support, confidence, or approval of someone
:
•
He tried to win over the skeptical audience with his passionate speech.
Dia mencoba memenangkan hati penonton yang skeptis dengan pidatonya yang berapi-api.
•
It took a lot of effort to win her over to our side.
Butuh banyak usaha untuk memenangkan dia ke pihak kami.