Mathieu Thinking Maths GIF

a man is sitting in front of a chalkboard with mathematical equations on it
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內容說明: a man is sitting in front of a chalkboard with mathematical equations on it
檔案大小: 7432KB
時間長度: 9.100 sec
維度: 498x280
建立時間: 5/29/2020, 2:04:36 PM