premiumn.额外费用；奖金；保险费n.(商)溢价adj.高价的；优质的premium casting优质铸件premium reserve保险费准备premium version收费版本premium returns额外利润； 退还保险费premium gasoline高级汽油,优质汽油premium business保险生意premium for risk[经] 风险报酬premium received[经] 收到佣金(酬金), 收到保险费premium - term衍音词premium currency升水货币