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Between the ages of six and twelve a second set of teeth form in the gum bellow the first teeth and push them out.. A baby has teeth under its gums even before its birthA[r]
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Between the ages of six and twelve a second set of teeth form in the gum bellow the first teeth and push them out.. A baby has teeth under its gums even before its birthA[r]
Ngày đăng: 28/01/2021, 18:09
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