Galasi nsalu yotchinga khoma makamaka amatanthauza chitetezo khoma atapachikidwa mu dongosolo lalikulu la ntchito yomanga, ndi galasi ndi mfundo yaikulu ya chitetezo khoma imeneyi, kumlingo wakuti, limatsimikizira mlingo wa kusamala mphamvu ndi kuteteza chilengedwe cha ntchito yomanga, ndi pa virt...
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