1、
At the outset, jazz was dance music, performed by swinging big bands.
起初爵士乐是一种舞蹈音乐, 由一些规模较大的乐队以摇摆舞的形式来演出.
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2、
There is such a big pool of bands that it's also where you can find the most solid bands in China.
北京有非常多的乐队，其中不乏很多都是现在中国的核心摇滚乐队。
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