The Kwai Chung container terminal is seen in Hong Kong, south China, Feb. 5, 2016. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Lui Siu Wai)
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The Kwai Chung container terminal is seen in Hong Kong, south China, Feb. 5, 2016. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Lui Siu Wai)