熊上套了# Stockh*92011-12-05 08:121 楼新买来的奶瓶,瓶口上盖着个圆片片,dr brown的上面写了remove before feeding,bornfree的上面就写了个up,干啥用的?防止灰尘细菌从奶嘴进入瓶内?