Youtube上的频道如 정보박사


501,000 1.67%

53,200 1.22%

44,800 2.04%



36,200 3.67%

390,000 2.77%

364,000 3.05%


3,390,000 1.13%

67,600 0.87%



14,900 1.38%




16,100 2.95%

9,140 2.19%



31,600 2.22%

37,400 1.43%