1. Ukuhlamba izandla ibhegi yesikolo a.Ngaphambi kokucoca, cwilisa isikhwama sesikolo emanzini (ubushushu bamanzi bungaphantsi kwama-30 ℃, kwaye ixesha lokufunxa kufuneka libe phakathi kwemizuzu elishumi), ukuze amanzi angene kwifiber kwaye ukungcola okunyibilikayo kwamanzi kunokususwa kuqala, ukuze isixa sesicoci singaba r...
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