故事發生在(zai)一(yi)(yi)所小(xiao)學(xue)(xue),校(xiao)(xiao)霸(ba)(ba)小(xiao)明是電(dian)(dian)(dian)動(dong)牙班上的校(xiao)(xiao)霸(ba)(ba),他得(de)到(dao)了一(yi)(yi)支神奇的校(xiao)(xiao)霸(ba)(ba)電(dian)(dian)(dian)動(dong)牙刷,只要用它刷牙,電(dian)(dian)(dian)動(dong)牙就能(neng)變得(de)善良溫和(he)。校(xiao)(xiao)霸(ba)(ba)小(xiao)明變得(de)和(he)藹(ai)可親,電(dian)(dian)(dian)動(dong)牙同學(xue)(xue)們都感到(dao)驚訝。校(xiao)(xiao)霸(ba)(ba)原來,電(dian)(dian)(dian)動(dong)牙他內心深處一(yi)(yi)直渴望改變。校(xiao)(xiao)霸(ba)(ba)電(dian)(dian)(dian)動(dong)牙