Tour guides have books put on the top of heads in a training at the Slender West Lake in Yangzhou, east China's Jiangsu Province, Aug. 5, 2015. (Photo: Xinhua/Meng Delong)
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Tour guides have books put on the top of heads in a training at the Slender West Lake in Yangzhou, east China's Jiangsu Province, Aug. 5, 2015. (Photo: Xinhua/Meng Delong)
