Students enjoy flowers in Huai'an, east China's Jiangsu Province, April 7, 2021. [Photo/Xinhua]

Students enjoy flowers in Huai'an, east China's Jiangsu Province, April 7, 2021. [Photo/Xinhua]

Aerial photo taken on April 7, 2021 shows flower fields in Xianyang Lake scenic area in Xianyang, northwest China's Shaanxi Province. [Photo/Xinhua]

Tourists enjoy flowers in Xianyang Lake scenic area in Xianyang, northwest China's Shaanxi Province, April 7, 2021. [Photo/Xinhua]

Aerial photo taken on April 7, 2021 shows tourists enjoying flowers in Xianyang Lake scenic area in Xianyang, northwest China's Shaanxi Province. [Photo/Xinhua]