A horse race is held at Sha Tin Racecourse in Hong Kong, south China, Jan. 30, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Wang Shen)
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A horse race is held at Sha Tin Racecourse in Hong Kong, south China, Jan. 30, 2017. July 1, 2017 marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Wang Shen)
