A crane enjoys coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

A flamingo enjoys coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

An alpaca enjoys coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

A white swan enjoys coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

Bar-headed geese enjoy coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

A crane enjoys coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

Spotted deers enjoy coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

Black swans enjoy coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)

Flamingos enjoy coolness in the rain at a park in Changchun, capital of northeast China's Jilin Province, Aug. 3, 2019. (Xinhua/Lin Hong)