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
Visitors walk past flowers at the World Horticultural Expo Garden in Kunming, southwest China's Yunnan Province, May 1, 2019, during the Labor Day national holiday. (Xinhua/Pu Chao)
Visitors walk past flowers at the World Horticultural Expo Garden in Kunming, southwest China's Yunnan Province, May 1, 2019, during the Labor Day national holiday. (Xinhua/Pu Chao)