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Photo taken on May 3, 2019 shows a plant at the bottom of the Luoquanyan sinkhole, which measures 290 meters in depth, in Xuan'en County, central China's Hubei Province. (Xinhua/Song Wen)
Photo taken on May 3, 2019 shows a plant at the bottom of the Luoquanyan sinkhole, which measures 290 meters in depth, in Xuan'en County, central China's Hubei Province. (Xinhua/Song Wen)