常见例句双语例句MethodsPatients in the observed group with their wound treated by AO and those in the control group treated by petrolatum gauze.方法对住院患者的皮肤创面用紫草油治疗为观察组，对照组用凡士林纱布治疗，观察两组的创面愈合率。 返回 petrolatum gauze