홈스쿨러, Software Architect, 주식투자자, 프로그래머, Roboticist, 아버지, 기독교인
김윤수 is sharing 2,092 stories with 138 people since November 30, 2007
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June 1, 2008
김윤수 is sharing 2,092 stories with 138 people since November 30, 2007
김윤수 is sharing 2,092 stories with 138 people since November 30, 2007
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