Did you know your mouth is a breeding ground for bacteria? Too many sweets will cause cavities, and toothaches will affect eating, chewing, and cause stomachaches too.The language is written for younger readers to understand.
你知道嗎？細菌是滋生蛀牙的罪魁禍首，如果我們的口腔不衛生，牙齒表面就會堆積大量的細菌。細菌在糖的幫助下，產生大量的酸來破壞我們的牙齒。長時間，牙齒上就生齲洞，蛀牙就形成了。最後，就會牙痛，嚴重的還會影響咀嚼，肚子疼呢！
