a person who dissents from some established policy
同义词：dissenter, dissident, protester, objector
contestant例句
Before the television quiz program, there was a warm-up to prepare the contestant.
在电视问答比赛节目开始之前，为参赛者做了准备性的练习。
A contestant in the final session of a competition.
决赛选手在比赛最后一轮相遇的比赛参加者
The next contestant surprised me. She made139 jumps in half a minute.
下一个参加比赛的人使我吃惊，她在半分钟之中跳了139下(指跳绳)。
A person who bets on a contestant.
赌客对竞争者下赌的人
contestant详细解释
con.tes.tant n.（名词）One taking part in a contest; a competitor.竞争者：参加竞赛的人；竞争者One that contests or disputes something, such as an election or a will.质疑者：对某事提出质疑或异议的人，如对选举结果或遗嘱的有效性
