Newborns weighed more than 3 Kg and infants older than one month were not treated by erythromycin, but with supportive methods, the clinical symptoms and signs still improved gradually.是什么意思_Newborns weighed more than 3 Kg and infants older than one month were not treated by erythromycin, but with supportive methods, the clinical symptoms and signs still improved gradually.在線翻譯_英語_讀音_用法_例句