Aerial photo taken on April 7, 2021 shows the construction site of the Beijing-Dezhou expressway in North China's Hebei province. The first phase of the expressway linking Beijing Daxing International Airport and Dezhou city in Hebei is expected to be put into operation in May 2021. [Photo/Xinhua]
Aerial photo taken on April 7, 2021 shows the construction site of the Beijing-Dezhou expressway in North China's Hebei province. [Photo/Xinhua]
Aerial photo taken on April 7, 2021 shows the construction site of the Beijing-Dezhou expressway in North China's Hebei province. [Photo/Xinhua]
Aerial photo taken on April 7, 2021 shows the construction site of the Beijing-Dezhou expressway in North China's Hebei province. [Photo/Xinhua]
Photo taken on April 7, 2021 shows people working at the construction site of the Beijing-Dezhou expressway in North China's Hebei province. [Photo/Xinhua]
Photo taken on April 7, 2021 shows people working at the construction site of the Beijing-Dezhou expressway in North China's Hebei province. [Photo/Xinhua]
