Photo taken on July 9, 2020 shows flowers at the west part of Changbai Mountain scenic area in northeast China's Jilin Province. (Xinhua/Lin Hong)

People visit the west part of Changbai Mountain scenic area in northeast China's Jilin Province, July 9, 2020. (Xinhua/Lin Hong)

Photo taken on July 9, 2020 shows lily and iris flowers at the west part of Changbai Mountain scenic area in northeast China's Jilin Province. (Xinhua/Lin Hong)

People visit the west part of Changbai Mountain scenic area in northeast China's Jilin Province, July 9, 2020. (Xinhua/Lin Hong)

Photo taken on July 9, 2020 shows iris flowers at the west part of Changbai Mountain scenic area in northeast China's Jilin Province. (Xinhua/Lin Hong)