prevail/prIˋvel; prIˈveIl/v [I] formal 【正式】1 if a belief or opinion prevails, it is common among a group of people〔信仰或观点〕流行﹐盛行: the beliefs which still prevail in our society 仍在我们社会中盛行的信念2 if something prevails, it is successful after a struggle【正式】〔经过斗争后〕获胜: Justice prevailed in the end. 正义最终获胜。prevail on/upon sbphr v formal to persuade someone to do something【正式】说服﹐劝说: prevail on/upon sb to do sth He prevailed upon the committee to reconsider its decision. 他劝说委员会重新考虑他们的决定。