A broad - spectrum antibiotic, C22H24N2O9, derived from the actinomycete Streptomyces rimosus and used to treat a variety of bacterial infections.是什么意思_A broad - spectrum antibiotic, C22H24N2O9, derived from the actinomycete Streptomyces rimosus and used to treat a variety of bacterial infections.在线翻译_英语_读音_用法_例句