n.额外费用；保险费；附加费；adj.高昂的；优质的； 变形： 复数：premiums 双语释义：n.(名词)[C]保险费 sum of money paid (regularly) for an insurance policy[C]奖；奖品；奖金reward;prize;bonus[C]额外费用 addition to ordinary chagres,price,etc. (like commission)英英释义： premiumn.payment for insurance同义词：insuran