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With over 2,000 years of history, the Hongya Cave, an ancient fortress in Chongqing, southwest China, is a mustsee for visitors to the city.
Fighting Floods
【摘 要】
：
With over 2,000 years of history, the Hongya Cave, an ancient fortress in Chongqing, southwest China, is a mustsee for visitors to the city.
【出 处】
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北京周报（英文版）
【发表日期】
：
2020年36期
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