
The Kwai Chung container terminal is seen in Hong Kong, south China, May 18, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Lui Siu Wai)

The Kwai Chung container terminal is seen in Hong Kong, south China, May 18, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Lui Siu Wai)