premiumn.额外费用；奖金；保险费n.(商)溢价adj.高价的；优质的premium insulation高级绝缘,优质绝缘premium motor fuel高级汽油premium instalment土地补价摊缴额premium on a lease租券赁费premium supplement保险费补充premium in arrears拖欠的保险费premium collection筹资premium overcharge保险费过高premium receivable可收取保险费premium engine oil高级机油