他手指敏捷，飞快地一舔，就卷好一支细细的香烟。

With deft fingers and a quick lick, he rolled a thin cigarette.

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他坐下来，脸孔严肃而专注，接着他的手指开始在钢琴的键盘上飞快来回弹奏着。

He sat down, his face serious and intent, and then his fingers began to race across the keyboard.

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两个小时的练习后，手指已经完全放开，能飞快的弹奏，这时候，你几乎可以用随心所欲的速度弹奏。

At the end of a two hour practice, the fingers are flying, so the students can play as fast as they want and enjoy the experience before quitting.

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