Unit 78 Brush and floss.

　　Unit 78 保持口腔清爽干净

　　Finish every meal by brushing and flossing your teeth.Your mouth will feel so fresh and clean that you won't want to put more food in it.

　　每次用餐完毕后，要刷牙以及用牙线剔牙。这样你的口腔会感到清爽干净，也就不会想吃东西了。