????? ????? ??? ???? ??? ??? ???? ???? ??? ?????.??? ??? ???? ????? ?????? ?? ?????? ??? ? ???? ?????!??? ????? ??? ?????????? ????? ??? ????.??? ??????? ???? ??? ??? ??? ?????. ?? ? ??? ??? ??? ?? ??? ?????? ??? ?? ??? ???? ?????, ?? ??? ?? ??? ??? ???? ?? ? ????.twelve contributions 1 hour back Investigate the hurdles of maintaining a cloud knowl