Mothers of the last generation raised their children on natural milk; today small children lie in sterile nurseries and are fed by nurses from bottles. Is this progress?

• 上一代妈妈把孩子一个个奶大，如今小孙儿却躺在无菌的婴儿室里，由护士以奶瓶哺喂。这是更进步了？还是退步了？