假如我再回到同年，我会培养自己专心致志的习惯；一旦手头有事，决不让任何东西使我分心。
If I were a boy again, I would school myself into a habit of attention; I would let nothing come between me and the subject in hand.
他专心致志地学习，没有什么东西能使他分心。
He was so concentrated on his studies that nothing could call off his attention.
你可以专心致志练习技巧而不必分心去看谱。
You can concentrate on learning the technique without distractions from having to refer to the music every time.
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