Teacher Xiaolong | 【良い質問共有】地球を斜めに通過する動きをどう解析するか、地球の中心を通ってしか学んでいないような…。 from www 爬ョ爰ァ游ァヲヲ爰ヲー 爬ヲ爰≒ヲァ 爬 Watch Video
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