Imboga & imbuto

Dukurikije ibitekerezo byabakiriya, biboneka ko icyatsi kibisi cyatsi gikoreshwa cyane cyane kumboga no gutera imbuto. Gukoresha ubu bwoko bwo gutera icyatsi ntibishobora kugabanya gusa ibiciro byabakiriya, ariko kandi byongera umusaruro wo gutera no kunguka byinshi.