For example, you can brush the outer sides of your teeth from left to right across the top, then move to the inside and brush right to left.
比如，你可以从左至右从顶端刷你的牙齿的外面，然后移到里面从右至左。
2
Brush all surfaces of the teeth, including the outer, inner and chewing surfaces as well as the hard-to-reach back teeth and areas around fillings, crowns or other restorations.
A tropical storm warning is up for the coastline of North Carolina, ahead of Subtropical storm Gabrielle expected to brush the outer Banks with maximum winds of 60-65 miles per hour.