title: Ku guuleystayaasha iyo kuwa guuldaraystay ee Ciyaarta 4aad ee Taxanaha Adduunka
abstract: Alex Bregman ayaa si weyn uga soo baxay dhibaatadii soo martay isaga oo ku guulaystay ciyaartii 4aad. kuwama guuleystayaasha kale iyo kuwa laga adkaaday?