Youtube上的频道如 Step by Step - Lezioni di Fisica



136,000 4.18%

114,000 5.45%

10,500,000 3.02%

65,100 4.77%


4,070,000 2.84%

40,500 2.18%

196,000 4.79%

190,000 1.87%



821,000 2.8%

4,760,000 1.7%


848,000 3.06%


9,420 1.19%

17,800 0.73%

142,000 3.09%



325,000 2.44%

448,000 3.1%

448,000 3.84%