People hold banners and flags during the annual demonstration of the International Workers' Day in Panama City, capital of Panama, on May 1, 2015. (Xinhua/Mauricio Valenzuela)
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Tsinghua junior makes over 10,000 yuan a day by selling alumnae's used quilts
Graduation photos of students from Zhongnan University
A school with only one teacher in deep mountains
Glimpse of cultural heritage "Xilankapu"
Homemade cured hams in SW China
Breathtaking buildings of W. Sichuan Plateau
Graduation photos of "legal beauties"
Top 10 most expensive restaurants in Beijing in 2015
