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1·A giant cave column swagged in flowstone towers over explorers swimming through the depths of Hang Ken, one of 20 new caves discovered last year in Vietnam.

洞穴中一根垂挂着流石的巨大石柱俯瞰着游向Hang Ken洞深处的探险者们，这个洞穴是去年在越南新发现的20个洞穴之一。