实际上，地下音乐是一种实践，一种游离于主流音乐之外的文化理念。
The underground is essentially a practice, a cultural philosophy of music that exists outside of the mainstream.
社会权利在某种意义上是一种理念，而公共消费是这种理念的实践。
Social rights in a sense are a concept, and public consumption is practice of the concept.
社会权利在某种意义上是一种理念，而公共消费是这种理念的实践。
Social rights in a sense are a concept, and public consumption is practice of the concept.
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