tumblr via “ibi-s: “早速結論から。違いを簡単に言うと「Hは着陸出来る」「Rは着陸出来ない」です。…” https://t.co/Kss69N7O3m



from Twitter https://twitter.com/itarunozaki

August 27, 2018 at 12:15PM
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