Udukingirizo
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Agapfundikizo k'icyuma kitagira umugese gashyushye gakozwe mu cyuma gishyushye gi ...
Inkunga ishyigikiwe ku nkingi ya beto ishyigikiwe akenshi ishyigikiwe, muri rusange ifata 1/5 ~ 1/10 cy'ubugari. Uburebure bw'inkunga muri rusange ni metero 2 cyangwa metero 3.