The incidence of nongonococcal urethritis in the sparfloxacin-treated group and spectinomycin-treated group was 4.8%and 27.3%, respectively.是什么意思_The incidence of nongonococcal urethritis in the sparfloxacin-treated group and spectinomycin-treated group was 4.8%and 27.3%, respectively.在线翻译_英语_读音_用法_例句