refrigerant/rɪˈfrɪdʒ.ə.rənt/名词制冷剂,冷冻剂,制冷物质Chlorofluorocarbons have been used widely in the production of refrigerants like Freon.氯氟烃已广泛用于氟利昂等制冷剂的生产。想跟读,去练习