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Visitors tour the Bai Causeway at the West Lake scenic spot in Hangzhou, capital of east China's Zhejiang Province, March 26, 2018. (Xinhua/Weng Xinyang)

Visitors tour the Bai Causeway at the West Lake scenic spot in Hangzhou, capital of east China's Zhejiang Province, March 26, 2018. (Xinhua/Weng Xinyang)