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A customer orders dishes in the restaurant cabin on the "Tangzhugudao" train, a special train themed on folk custom along an ancient trading route, from Xining, capital of southwest China's Qinghai Province, to Xigaze, southwest China's Tibet Autonomous Region, on Jan. 21, 2019. The "Tangzhugudao" train, running on the Qinghai-Tibet Railway, has a restaurant cabin which offers local specialities such as yogurt, oil tea and also pot-planted vegetable. (Xinhua/Zhang Long)
