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The upper part (file) of this combo photo taken by Pan Jiamin shows the Bamboo Garden Hotel in Shenzhen, south China's Guangdong Province. The lower part of the combo photo taken by Mao Siqian on Oct. 10, 2016 shows the Qianhai Shenzhen-Hong Kong Youth Innovation and Entrepreneur Hub in Shenzhen. This year marks the 40th anniversary of China's reform and opening-up policy. Over the past four decades, Shenzhen has developed from a small fishing village to a metropolis. (Xinhua)