폰테크 for Dummies

?, ???? ?? ???? ?? ???? ???? ?? ???? ?????. ??? ???? ??? ??? ?? ???? ????? ?????. ? ?? ???? ??? ? ???? ????? ?????? ?? ???? ???? ???. Cellular phone-tech is Buying a new mobile phone at an affordable price, and offering an outdated one at a greater rate in order to receive dollars ????????
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