Photo taken on July 18, 2020 shows water lily flowers at Guyi Garden in east China's Shanghai. The 8th Shanghai lotus and water lily exhibition raised its curtain at Guyi Garden of Shanghai recently, attracting a constant flow of local residents and visitors. (Xinhua/Liu Ying)

Photo taken on July 18, 2020 shows water lily flowers at Guyi Garden in east China's Shanghai. The 8th Shanghai lotus and water lily exhibition raised its curtain at Guyi Garden of Shanghai recently, attracting a constant flow of local residents and visitors. (Xinhua/Liu Ying)

Photo taken on July 18, 2020 shows lotus leaves and water lily flowers at Guyi Garden in east China's Shanghai. The 8th Shanghai lotus and water lily exhibition raised its curtain at Guyi Garden of Shanghai recently, attracting a constant flow of local residents and visitors. (Xinhua/Liu Ying)

Photo taken on July 18, 2020 shows a water lily flower at Guyi Garden in east China's Shanghai. The 8th Shanghai lotus and water lily exhibition raised its curtain at Guyi Garden of Shanghai recently, attracting a constant flow of local residents and visitors. (Xinhua/Liu Ying)