摘要
牙齿健康是健康的重要组成部分，世界卫生组织把牙齿健康列为人体健康的10大标准之一。牙齿健康不仅反映生命质量，而且也是人类现代文明的重要标志。你知道怎样保护牙齿吗？
Your teeth are important in many ways. lfyou take care of them, they＇ll help take care of you. Strong, healthy teeth help you chew the right foods to help you grow. They help you speak clearly. And yes, they help you look your best.
