基本解释adj.最昂贵的同根派生 英汉例句用作形容词 (adj.)A BAT survey revealed that Bulgarians buy some of the costliest cigarette brands compared to their income.一个英美烟草的调研披露，保加利亚人购买一些与他们收入相比最昂贵的卷烟品牌。