Zvinhu zvinocheka kufambira mberi kunoshamisa munzvimbo yezvishandiso zvokuchenesa imba, kunyanya muboka rechimiro chokutsanana chezuva nezuva. Iyi nhengo dzokutsva dzakagadzirwa nezvinosiyana - siyana nokuchengeta nzvimbo mupfungwa, kuchiita kuwedzera kunokosha kumusha upi noupi. Rutivi rwavo rwunobvumira kuchengetwa zvakasimba apo vasingashandiswi, nokudaro vachichengeta nzvimbo inokosha mukicheni, dzimba dzokugezera, kana kuti u