Ma jenereta a ion a ion amatha kutulutsa ma ion oipa. Ma ions olakwika ali ndi vuto loyipa. Ngakhale kuti pafupifupi tinthu tating'onoting'ono tokhala ndi mpweya, kuphatikiza fumbi, utsi, mabakiteriya ndi zina zowononga mpweya, zimakhala ndi mtengo wabwino. Ma ion negative amatha kukopa maginito ...
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