The city in the Chu Kingdom Before Qin Dynasty comes into being in the specific historical geographical environment.

先秦蜀国城市是在特定的历史地理环境中起源和形成的。

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Tribal traditions, geographical environment, historical circumstances, background and other factors, form the different regional traditions and styles of the Mongolian long-tune.

部落传统、地缘环境、历史境遇、生活背景等因素，形成了蒙古族长调不同的区域传统和风格。

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