のようなYouTubeチャンネル Professor Douglas Maioli


3,390,000 1.13%

109,000 4.73%

29,600 4.43%

94,300 5.23%

90,300 8.7%

749,000 8.77%



61,800 11.5%

2,850,000 6.15%

20,400 3.54%


236,000 4.55%

568,000 1.96%

3,210,000 2.78%

835,000 2.77%

4,070,000 2.84%