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A tea art specialist (C) dressed in costume of Tang Dynasty (618-907) mills tea cake with a roller during a Tang-styled tea cooking show in Xi'an, capital of northwest China's Shaanxi Province, April 18, 2018. (Xinhua/Liu Xiao)
A tea art specialist (C) dressed in costume of Tang Dynasty (618-907) mills tea cake with a roller during a Tang-styled tea cooking show in Xi'an, capital of northwest China's Shaanxi Province, April 18, 2018. (Xinhua/Liu Xiao)