Albaabka dab-damiska ee birta ahi waxa uu ka kooban yahay bir bir ah iyo caleen bir ah. Qaab dhismeedka birta ayaa hubin kara in aysan u nuglayn saamaynta qallafsanaanta iyo waxyeelada xoogga dibadda, waxaana loo isticmaali karaa si caadi ah muddo dheer iyada oo aan la beddelin. Habka iyo habka kormeerka tayada ee albaabbada dabka birta ee marxaladda wax soo saarka ayaa ah mid aad u adag, kaliya habkan ayaa u gudbi kara kormeerka ka hor inta aan la iibin.

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