rat.ern.(名词)One that rates, especially one that establishes a rating.估定人:价估价值的人,特别是确定汇率的人One having an indicated rank or rating. Often used in combination:…等级的人:具有特定级别和地位的人。常常用在合成词中:例句:a third-rater; a first-rater.第三等级的人;第一等级的人