Tourists view tulips at a park in Changchun city, capital of Northeast China’s Jilin province, May 7, 2018. [Photo/Xinhua]

Photo taken on May 7, 2018 shows tulips at a park in Changchun city, capital of Northeast China’s Jilin province. [Photo/Xinhua]

Photo taken on May 7, 2018 shows tulips at a park in Changchun city, capital of Northeast China’s Jilin province. [Photo/Xinhua]

Photo taken on May 7, 2018 shows tulips at a park in Changchun city, capital of Northeast China’s Jilin province. [Photo/Xinhua]