dissuade

1. V-T If you dissuade someone from doing or believing something, you persuade them not to do or believe it. 劝阻[正式]

Doctors had tried to dissuade patients from smoking. 医生曾试图说服病人不要抽烟。

She steadfastly maintained that her grandsons were innocent, and nothing could dissuade her from that belief. 她始终坚持她的孙子们是无辜的，没有什么能改变她的这一信念。