Yenziwe i-4pce
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Ukusetshenziswa kwegalofu kunendawo ephansi yokudonsela phansi futhi kuthambekele kwizifundo eziphakeme
Isici salokhu ku-hybrid: Umklamo ongezansi wesikali sokukhubazeka ufinyelela isikhungo esiphansi sokudonsa amandla, okwenza kube lula ukudlala.