Oxygen ndiye maziko a moyo wathu.Popanda mpweya, sitingathe kukhala ndi moyo.Titha kuwona mzipatala kuti odwala ena amafunikira masilinda a oxygen azachipatala.Chifukwa odwalawa amatha kupuma bwino ndi masilinda a okosijeni, pali zofunikira zosungirako ...
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