Youtube上的频道如 ミツノ理科室



210,000 1.15%

20,400,000 2.43%

3,210,000 2.78%

324,000 1.94%

181,000 5.37%

60,700 6.7%



66,900 1.38%

6,100 0.67%



117,000 2.2%

9,540 4.59%

384,000 1.74%

471,000 1.53%

835,000 2.77%


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