『ｙｏｕ』で「極座標」
3:11
Added: 4 years ago
From: NiconicoMath
Views: 7,239
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  • このシリーズ

    最高ですね！！！

    yasumidaisuki 2 years ago

  • 耳の音痴は直せます！

    がんばれ

    aaa104ky 3 years ago

  • ずれてます　せっかく歌で覚えられるのにもったいないです！

    reidamu 3 years ago 6

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