. Kwa ena , kuweta nkhumba ndiye tsogolo labwino pomwe alangizi adanenetsa kuti kukhala ndi makola ouma , kudyetsa bwino , ndiye tsogolo lokoma la ulimiwu . Alimi ena adati koma mbuzi ndiye tsogolo labwino chifukwa sizivuta kudyetsa komanso matenda ndi ochepa .