Youtube上的频道如 るーいのゆっくり科学




52,100 0.92%



178,000 1.48%


324,000 1.94%


2,070,000 2.26%

3,390,000 1.13%

3,210,000 2.78%

1,050,000 2.49%








146,000 1.31%

9,470,000 2.63%