Youtube上的频道如 Greenpen School



246,000 4.74%

1,320,000 4.7%

3,210,000 2.78%

23,700 2.92%


1,290,000 2.41%


355,000 3.21%

62,800 4.92%

6,300 6.32%


25,300 4.48%

723,000 4.63%



1,240,000 2.24%

84,200 4.17%

64,600 2.81%

3,390,000 1.13%

567,000 4.18%

16,300 3.57%

16,000 2.66%

124,000 4.03%

20,000 4.24%