Ulusu lwakho lelona lungu lomzimba wakho likhulu, elenziwe ngamacandelo ahlukeneyo, kubandakanya amanzi, iiprotheyini, iilipids, kunye neeminerali ezahlukeneyo kunye neekhemikhali. Umsebenzi wayo ubalulekile: ukukukhusela kusulelo kunye nolunye uhlaselo lokusingqongileyo. Ulusu lukwanazo nemithambo-luvo eva ukubanda, ubushushu,...
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