Observerare

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  Tim Mendenhall

  https://roomalba.net/%EA%B3%A0%EC%88%98%EC%9D%B5%EC%95%8C%EB%B0%94-%EC%97%AC%EC%84%B1%EC%9D%98-%EC%83%88%EB%A1%9C%EC%9A%B4-%EA%B8%B0%ED%9A%8C%EB%A5%BC-%EC%97%B4%EB%8B%A4/