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並前往https://www.newscientist.com/article/mg21729014-900-lingering-kiss-dna-persists-in-the-mouth-after-smooch/

Lingering kiss: DNA persists in the mouth after smooch - New ...

SO ROMANTIC… when you kiss your partner passionately, not only do you exchange bacteria and mucus, you also impart some of your genetic code ...

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