Eat : Deficiency of calcium fluoride can cause varicose veins, receding gums, curvature of the spine, &eye problems.

吃： 缺乏氟化钙可能造成静脉曲张、齿龈老化、脊椎弯曲和视力问题。

youdao

Cambara remembers his gums bleeding prolifically and receding wastefully at a phenomenal rate, the inflammation, combined with the irritation on account of the tartar deposits, causing the loosening of several of his teeth.

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