Cherechedza ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwe chete sezvinotaurwa mundima iyi: Passage: Mvura yepasi inogona kufungidzirwa nenzira imwecheteyo semvura yepasi: zvinopinda, zvinobuda uye kuchengetedza. Musiyano wakakosha ndewekuti nekuda kwekunonoka kwayo kutenderera, kuchengetwa kwemvura yepasi kazhinji kwakakura (muhuwandu) zvichienzaniswa nezvakapihwa kupfuura zvemvura yepasi. Musiyano uyu unoita kuti zvive nyore kuti vanhu vashandise mvura yepasi zvisina kugadzikana kwenguva yakareba pasina mhedzisiro yakakomba. Kunyange zvakadaro, kwenguva yakareba avhareji yekudonha pamusoro penzvimbo yemvura yepasi ndiyo muganho wepamusoro weavhareji yekushandisa mvura kubva kunzvimbo iyoyo. Mubvunzo: Sezvo mvura yepasi inogona kuchengetwa kwenguva yakareba izvi zvinoita kuti zvive nyore kuti ndiani anoishandisa.
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