電動牙刷清洗牙齦部分比手動有效。我家孩子們自從用電動的以後，每次去牙醫那裏檢查都比以前手動刷牙效果好

來源: 閑情於 2016-10-18 13:16:54 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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