? ???? ???? ? ???? ????? ???? ? ??? ?? ??? ????, ???? ??? ???? ???? ????, ???? ?? ??? ???? ?? ??? ?? ??? ???? ????.“???”? ?? ? ???? ???? ? ??? ?? ? ???? ???? ???? ?? ????.To cater into the cell-savvy inhabitants of Busan, “??” has formulated a cellular-only application. This application gives site-dependent companies, which makes it incredi