【STEM科普動畫】Ask The StoryBots《問問故事機器人》主角由5個性格各異，生活在電腦里的機器人精彩演繹，充滿笑料 P3 - S01E03

The StoryBots embark on a mission to answer a question from a girl named London: \"Why do I have to brush my teeth?\" After consulting the Tooth Fairy, the team travels inside a human mouth to discover the battle between helpful bacteria and harmful plaque, eventually convincing a lazy sheriff to return to duty and save the teeth from decay.