她不得不一遍又一遍地听旋律，把它记在心里，然后一遍又一遍地练习弹奏。
She had to listen to the melody again and again, keep it in mind and then practice playing it over and over again.
我从小就练习钢琴﹐也练习到可以只用听的就可从音乐中挑出一个简单旋律﹐但我还是未曾拥有成为一个专业音乐家所需要的技术。
I had practiced the piano as a kid, and I could read enough music to pick out a simple melody, but I didn't have the kind of technique it takes to become a professional musician.
并且在课程里，你将需要练习许多东西，是你在前几个习题和探索里学到的，并做出新的旋律一致性。
And in the course of it, you will need to practice much of what you have learned in the previous projects and explorations to make new melodic coherence.
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