'??? ??? ??' ??? : ???? ?? ??? '????' ??. ???? ?? 250???? ?? ?? ?? ??? 50%? ???? ???? 1?? ???. ???? '??? Fun Fun????'? ????? ?? ??. ????? ??? ??? ?????? ????…
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TEDxBusan – ShinChangYeon – Craft your passion challenges
Published on July 29, 2016
