via https://t.co/dCZvREV3Di "抽象概念同士の関係の教育(2)" https://t.co/jaQNXhJjTx
— Itaru Nozaki (@itarunozaki) January 17, 2020
from Twitter https://twitter.com/itarunozaki
January 17, 2020 at 10:22AM
via IFTTT
Bent my ear to hear the tune and closed my eyes to see