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As piggy Zhuangzhuang grows up day by day, 20 baby teeth have all erupted. The baby teeth are aligned in Zhuangzhuang’s mouth. Time files!It is time to go to kindergarten.
Teacher Hedgehoe told him the time and sequence that baby teeth erupt. Zhuangzhuang listened carefully. He opened his mouth now and then. He checked his own teeth and found all the teeth in his mouth.Zhuangzhuang laughed happily.