prodigal son

剑桥词典

a man or boy who has left his family in order to do something that the family disapprove of and has now returned home feeling sorry for what he has done
回头的浪子
figurative The prodigal son has returned to the team after a three-year absence . 三年之后浪子回头，重新加入队伍。 返回 prodigal son