수학 수업 중 딴짓하면 안되는 이유

전기현 0 5846 0 0 2021.08.12 23:16

![b8f0472ad50b45c30f2de720d7742153.gif](https://freshrimpsushi.com/community/data/editor/2108/2039935291_1628777798.4337.gif "b8f0472ad50b45c30f2de720d7742153.gif")

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