To have a perfect grasp of the principles or techniques and execute them skillfully and effortlessly; to achieve perfect coordination between mind and hand, indicating mastery.
经过多年的刻苦训练，这位钢琴家弹奏时，早已是得于心应于手，指尖流淌出的音符充满了灵性
After years of diligent practice, this pianist performs with perfect harmony between mind and hand; the notes flowing from their fingertips are filled with spirit.
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