A child is seen in a cole flower field in Xishimen village of Wu’an city, North China’s Hebei province, April 7, 2019. [Photo/Xinhua]

A visitor takes photos in a cole flower field in Xishimen village of Wu’an city, North China’s Hebei province, April 7, 2019. [Photo/Xinhua]

Children play in a cole flower field in Xishimen village of Wu’an city, North China’s Hebei province, April 7, 2019. [Photo/Xinhua]

Visitors take selfies in a cole flower field in Xishimen village of Wu’an city, North China’s Hebei province, April 7, 2019. [Photo/Xinhua]