#GREETC 来週9/18です！ https://j.mp/2GwhvXB https://j.mp/3i9bb6x

aki

5年前

#GREETC 来週9/18です！ https://t.co/0ayUMwvOnU https://t.co/fJ6eanTpqX

— Akihiko SHIRAI, Ph.D #VTC20 (@o_ob) September 8, 2020

from Twitter https://twitter.com/o_ob