柯林斯詞典freebase /?fri??be?s/ 1. N cocaine that has been refined by heating it in ether or some other solvent (在乙醚或其它溶劑中加熱過(guò)的)精煉可卡因[slang] 2. V to refine (cocaine) in this way 用乙醚等加熱精煉(可卡因) 返回 free base