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Unit 78：Brush and floss
第78單元：用餐后要刷牙和剔牙
Finish every meal by brushing and flossing your teeth.
每次用餐完畢后，要刷牙以及用牙線剔牙。
Your mouth will feel so fresh and clean that you won't want to put more food in it.
這樣你的口腔會感到清爽干凈，也就不會想吃東西了。
