Mu bice bimwe binini, nk'inyubako z'ubucuruzi, ibibuga byindege, ibikoresho byo gukora nububiko, bisaba isuku buri gihe kugirango bigumane umwuga kandi utumirwa, imashini zisukura hasi zifite avdantage nini zitanga umusaruro, kunoza imikorere yisuku, guhoraho ...
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