虽然摇摆舞现在风靡全球，但它最初是在20世纪20年代至30年代间的纽约爵士乐运动中出现的。

Though Swing is now popular worldwide, it first appeared alongside the jazz movements of the 1920s and 1930s in New York City.

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这能说明两代间的平等吗？

Does this account for intergenerational equity?

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第二支柱的附加值首先是建立在两代间的风险分担上吗？

Is the value added of the second pillar not found above all in intergenerational risk sharing?

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