This formula applies one of the longevity conditions of Bama people: lung function improving method — a principle that the high content of negative oxide ions in the air makes people live long.

此配方应用了巴马人长寿条件之一：肺部功能提高法——空气中负氧离子含量高而让人长寿的原理。

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As is always the way with trends, one rests on the other, and career recurving is a function of longevity: most people living to full lifespan and active old age.

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