Decadent music, often considered a sign of moral decay and impending downfall.
近来，城中一些娱乐场所的靡靡之音日盛，这不禁让人想起古人所说的北鄙之声，担忧世风日下。
Recently, the decadent music in some entertainment venues in the city has become more prevalent, which inevitably reminds people of the 'music of the northern borders' mentioned by the ancients, raising concerns about moral decay.
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