20~30? ?? ?? ?? ???? ???
“??? ?? ???? ???” ??
??? ??? ? ? 6? ??
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???? ?? ??? ??? ????.
???? ?? ??? ??? ‘??? ????’? ???? ???? ???? ???? ??? ????? 30? ???.
??? ???? ???? ???? ‘????(Groo-adopter)’? ?? ?? ???? ???? ????? ??. ????? ???? ?????? ?? ??? ??? ??? ??? ?? 20~30? ??? ????? ????. ??? ?? ??? ??? ??? ???? ??? ???? ??? ????? ??? ???? ?? ???? ??? ???? ???? ????.
???? ???? ??? ??? ??? ?? ? 12??? ?? 10% ?? ??? ???? ???? ????.
???? ??? ?? mbkim@donga.com