Ihame ryakazi: Imyanda idafite ibyuma yashizweho kugirango itange uburyo bworoshye bwo kubika ibigega byo munsi y'ubutaka, imiyoboro, imiyoboro, hamwe nizindi nyubako zifunze.Bikorewe mubikoresho biramba bidafite ibyuma bishobora kwihanganira ibidukikije bikaze, nka ruswa, abrasion, na hig ...
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