1:04:27
【完全版】歌、声の悩みの根本解決を目指す!! 最古の発声法の声のしくみ大公開〜チェザリィヴォーカリスィズ®
18:15
I taught an octopus piano (It took 6 months)
27:41
Triangular Prism - Volume, Surface Area, Base and Lateral Area Formula, Basic Geometry
12:59
Deutsche Dinge, die Japaner NICHT verstehen!
8:02