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Tourists watch a music band performance on the bank of the Huangpu River in east China's Shanghai, May 1, 2019, the first day of four-day May Day holiday. (Xinhua/Chen Fei)
Tourists watch a music band performance on the bank of the Huangpu River in east China's Shanghai, May 1, 2019, the first day of four-day May Day holiday. (Xinhua/Chen Fei)