Photo taken on June 21, 2018 shows drops of dew hanging on a lotus flower petal at Nanhu Park in Hengyang, central China's Hunan Province. (Xinhua/Cao Zhengping)

A dragonfly rests on a lotus flower bud at Nanhu Park in Hengyang, central China's Hunan Province, June 21, 2018. (Xinhua/Cao Zhengping)

A honeybee hovers over a lotus flower at Nanhu Park in Hengyang, central China's Hunan Province, June 21, 2018. (Xinhua/Cao Zhengping)