のようなYouTubeチャンネル Perkins School for the Blind


1,540,000 2.64%

3,390,000 1.13%

3,210,000 2.78%

8,410 4.33%

25,200 0.74%



1,020,000 3.13%

524,000 2.7%

4,280,000 2.98%

1,330,000 3.39%

835,000 2.77%

10,500,000 3.02%