noun🔗Share游离碱，碱基。 The purified, dry form of an amine, especially an alkaloid natural product, that is normally used in solution."The chemist carefully weighed the freebase before dissolving it in the solvent for the experiment. "这位化学家在将游离碱形式的物质溶解到溶剂中用于实验之前，仔细地称量了它。chemistrysubstancecompoundtechnicalmedicineChat with AIVocabulary GamePractice Reading
noun🔗Share快克，纯可卡因。 (specifically) The purified, dry form of certain illegal drugs, especially cocaine."The police found a small amount of freebase cocaine during the raid. "警察在突袭行动中发现少量快克，也就是纯可卡因。substancechemistrymedicinepoliceChat with AIVocabulary GamePractice Reading
verb🔗Share提炼，游离碱化。 To purify a drug by crystallization."The chemist had to freebase the cocaine to remove impurities before testing its purity. "为了在测试可卡因纯度之前去除杂质，化学家必须先提炼可卡因，使其游离碱化。chemistrysubstancemedicineChat with AIVocabulary GamePractice Reading
verb🔗Share吸食纯可卡因， 溜冰 To use a purified drug, especially cocaine, by heating it and inhaling the fumes produced."He frebased the cocaine, despite knowing the dangers. "尽管知道危险，他还是溜冰了（可卡因）。substancemedicineactionChat with AIVocabulary GamePractice Reading
