People walk down steps with paintings on them at Tai Po Waterfront Park in Hong Kong, south China, April 22, 2017. This year marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Liu Yun)
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People walk down steps with paintings on them at Tai Po Waterfront Park in Hong Kong, south China, April 22, 2017. This year marks the 20th anniversary of Hong Kong's return to the motherland. (Xinhua/Liu Yun)
