Sisitemu yo kumanika muri rusange bivuga uburyo bwo guhagarika cyangwa guhagarika ibintu, nkibikorwa byubuhanzi, ibimera, cyangwa imitako, kuva hejuru cyangwa kurukuta.Mubisanzwe birimo ibyuma nkibikoresho, insinga, cyangwa iminyururu bikoreshwa mukugaragaza ibintu neza kandi bigatera inyungu ziboneka mumwanya.Di ...
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