Nkigice cyingenzi cya sisitemu nyinshi zubukanishi, urunigi rwimikorere rwemeza imikorere myiza yimashini zitandukanye.Ariko, kimwe nibindi bikoresho byubukanishi, iminyururu irashobora kwegeranya umwanda, ivumbi n imyanda mugihe.Isuku isanzwe no kuyitaho ni ngombwa kugirango tunoze du ...
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