To drive the ball further, or to let the ball get some more distance, you have to accelerate your downswing when the club head reaches the hitting area as the acceleration will give the power.

• Accelerate：一指下挥球（downswing）至击球区（hitting area）时增加杆头速度而增加打击力量；二指球打出后加速飞行，如同飞机之起飞。