求翻译：Load your iPod nano with your favorite tunes. Or browse over 13 million songs and discover even more. You can search by artist name, song, or album title and handpick exactly the songs you want. Want some help finding new music? The Genius sidebar recommends new music based on the songs you already love. When you find something that sparks your interest, listen to the free 30-second preview. Click once to buy the song and it starts downloading instantly. It’s the fastest, easiest way to build a digital music collection for your iPod nano.是什么意思？

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