Sinenqubo yokuhlola eqinile, ngokunemba kwemishini yokuhlola ama-microns angu-2. Ukuze siqinisekise ukunemba nokuthembeka kwemiphumela yokulinganisa, sihlonyiswe ngohlelo olukhethekile lokupholisa umoya, okokusebenza kokususa umswakama, okokulawula ugesi, kuyilapho isidingo ...
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