Recent studies make a direct connection between longevity and teeth flossing.

最近的研究表明:长寿跟用牙线洁齿直接相关.

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In addition, flossing regularly and using a good mouthwash is also recommended.

此外, 还推荐你定期使用牙线和挑选一把好牙刷.

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Flossing is no longer freakish.

用牙线剃牙不再古怪.

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I mean, what if a condom breaks? Or he's flossing his teeth and his gums bleed?

我是说, 如果避孕套破了,或是他牙齿松动了,牙龈流血了 怎么办 ?

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The gums are swollen, soft, and may bleed, particularly during brushing or flossing.

牙龈肿胀, 柔软, 可能出血, 尤其在刷牙或用牙线清洁的时候.

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