Tarisa ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwechete sezvinoita ndima: Passage: Chinhu chinodiwa kuti injini yemvura ishande nemazvo kwaive kumanikidza kwakakwana mumapaipi emvura. Munguva yekushandisa mvura yakawanda (pamberi kana mushure mebasa) kumanikidza kwemvura kwaiwanzo kuve kusingakwani. Munguva yechando yakaoma, umo mapaipi emvura aiwanzo kutonhora, injini yemvura yaisakwanisa kushandiswa. Nezvikonzero izvi michina yekuwachira yainge ichine mudziyo unogonesa kutenderedzwa ne'simba remhasuru'. Mubvunzo: Mwaka wei wakakonzera kutonhora kwemapaipi emvura?
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