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an manual toothbrush

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Which is better, an electric toothbrush or an manual toothbrush?

2020-12-24


In order to let you more clearly understand the difference between ordinary toothbrush and electric toothbrush use experience, small make up from the following four aspects for you to introduce it in detail. First, the first aspect: the brushing method. Ordinary toothbrushes are cleaned by hand. We