Youtube上的频道如 National Association of Plant Breeders


3,390,000 1.13%


247,000 1.43%

5,330 0.73%

12,800 1.14%

19,900 1.38%

364,000 3.05%

141,000 2.08%



1,480,000 2.19%

7,950 2.21%

25,000 3.12%

6,270 1.33%

5,170 2.97%

9,110 0.82%




764,000 1.57%

8,630 3.92%


52,800 1.21%

3,030,000 1.43%

3,210,000 2.78%