學生們, 您在進步中嗎?

60-minute Practice per Week = 2 Months Progress in 12 Months

30-minute Practice per Day = 6 Months Progress in 12 Months

45-minute Practice per Day = 12 Months Progress in 12 Months

60-minute Practice per Day = 15 Months Progress in 12 Months

90-minute Practice per Day = 24 Months Progress in 12 Months

2 Hours Practice per Day = 36 Months Progress in 12 Months