Youtube上的频道如 The Civil Professor


101,000 1.34%

147,000 0.94%

10,500,000 3.02%


3,390,000 1.13%

4,070,000 2.84%

7,840 0.58%

45,500 2.54%

126,000 4.44%

524,000 2.7%

138,000 1.38%

835,000 2.77%

38,400 1.38%

15,800 6.52%

19,200 1.81%



48,100 2.14%

345,000 1.62%


7,180 2.56%

548,000 2.02%


5,340 4.41%

25,600 1.84%