Definition
to convince someone to undertake an action that they are reluctant to perform
勸服某人
She tried to prevail upon him to attend the party, but he still hesitated.
她試圖勸服他去參加派對，但他仍然猶豫不決。
His friends prevailed upon him to enter the competition, and eventually, he agreed.
他的朋友們勸服他參加比賽，最終他同意了。
She spent the entire afternoon trying to prevail upon her parents to let her go on the trip.
她花了整個下午試圖勸服她的父母讓她去旅行。