win over

US /wɪn ˈoʊvər/
UK /wɪn ˈoʊvər/
"win over" picture
1.

ganarse, convencer

to gain the support, confidence, or approval of someone

:
He tried to win over the skeptical audience with his passionate speech.
Intentó ganarse a la audiencia escéptica con su apasionado discurso.
It took a lot of effort to win her over to our side.
Costó mucho esfuerzo ganársela para nuestro lado.