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我想发明的音乐牙刷与普通牙刷外形上十分相似,只不过我在其内壳里装了一块音乐电路系统,经过纳米技术处理
The musical toothbrush I wanted to invent was very similar in appearance to the ordinary toothbrush, except that I installed a music circuit system in its inner shell and processed it through nanotechnology.