1, Ukulungiselela kwangaphambili ukuqalisa 1).Ngokuhambelana nepompo yokuthambisa igrisi, akukho mfuneko yokongeza igrisi ngaphambi kokuqala;2).Phambi kokuba uqalise, vula ngokupheleleyo ivalve yokungena yempompo, vula ivalve yokuphuma, kwaye impompo kunye nombhobho wokungena wamanzi kufuneka uzaliswe ngolwelo, emva koko uvale umbhobho wokuphuma...
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