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Kuyika Machubu ndi Mavavu Oyimbira Zida
Timapereka zinthu zotsika mtengo zotsika mtengo zamafakitale padziko lonse lapansi omwe ali ndi chidwi ndi zombo zapamadzi, malo opangira magetsi a nyukiliya, malo opangira makina, mphero zamkati ndi mapepala, komanso kupanga mafuta akunyanja.
