The Verge
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Philips’ new smart toothbrush shows you where you didn’t properly brush
原文英文，约700词，阅读约需3分钟。
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内容提要
The latest addition to Philips' Sonicare line of smart electric toothbrushes could take the guesswork out of your brushing routine. The Next-Generation DiamondClean 9900 Prestige uses a...
