A shopkeeper tests the Alipay HK at a store in Hong Kong, south China, May 23, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Qin Qing)
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A shopkeeper tests the Alipay HK at a store in Hong Kong, south China, May 23, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Qin Qing)