| 摘要 |
An electro-motion toothbrush includes a case where a driving unit is installed. First and second toothbrush support rods are flexible and rotated by the driving unit in directions opposite to each other. First and second toothbrush heads are connected to upper ends of the first and second toothbrush support rods, respectively. First and second toothbrush bristles are implanted to interweave with each other along a lengthwise direction of the first and second toothbrush heads and not to cross each other during operation.
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