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스마트폰: 현대 사회의 필수품
?? ????? ?? ?????/???/??? ???? ??/??/?? ??? ???/???/??? ???? ?? ??. ??, ????? ??? ??? ???/21???/???? ?? ?? ???/????/???? ?? ? ??? ????. ??? ??/??/??? ? ? ??? ??? ???? ??? ????? ????? ????/???? ????/???? ???? ????? ??? ??? ??? ????. ????? ??? ?? ???? ?? ???/????/???? ????? ??, ??????, ???? ???? ??/?? ???/???. ??? ???, ?? ??? ??? ?? ??? ????? ??
스마트폰: 현대 사회의 필수품
?? ????? ?? ?????/???/??? ???? ??/??/?? ??? ???/???/??? ???? ?? ??. ??, ????? ??? ??? ???/21???/???? ?? ?? ???/????/???? ?? ? ??? ????. ??? ??/??/??? ? ? ??? ??? ???? ??? ????? ????? ????/???? ????/???? ???? ????? ??? ??? ??? ????. ????? ??? ?? ???? ?? ???/????/???? ????? ??, ??????, ???? ???? ??/?? ???/???. ??? ???, ?? ??? ??? ?? ??? ????? ??
자신만을 위한 스마트폰은?
?? ????? ?? ?????/???/??? ???? ??/??/?? ??? ???/???/??? ???? ?? ??. ??, ????? ??? ??? ???/21???/???? ?? ?? ???/????/???? ?? ? ??? ????. ??? ??/??/??? ? ? ??? ??? ???? ??? ????? ????? ????/???? ????/???? ???? ????? ?? ???? ??? ????. ????? ??? ?? ???? ?? ???/????/???? ????? ??, ??????, ???? ???? ??/?? ???/???. ??? ???, ?? ??? ????? ?? ??? ???? ??