Aerial photo taken on Dec. 23, 2020 shows the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Mu Yu)

Photo taken on Dec. 23, 2020 shows the waiting hall of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Yang Shiyao)

Workers clean the chairs in the waiting hall of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province, Dec. 23, 2020. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Mu Yu)

Aerial photo taken on Dec. 23, 2020 shows the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Mu Yu)

Workers work at the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province, Dec. 23, 2020. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua)

Photo taken on Dec. 23, 2020 shows a view outside of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Mu Yu)

Aerial photo taken on Dec. 23, 2020 shows the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Yang Shiyao)

Photo taken on Dec. 23, 2020 shows the entrance of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Mu Yu)

Aerial photo taken on Dec. 20, 2020 shows the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua)

Aerial photo shows workers working on the roof of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province, Dec. 21, 2020. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua)

Aerial photo taken on Dec. 20, 2020 shows the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua)

Photo taken on Dec. 23, 2020 shows the entrance of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Mu Yu)

A worker cleans the equipment in the waiting hall of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province, Dec. 23, 2020. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua/Yang Shiyao)

Aerial photo taken on Dec. 20, 2020 shows the construction site of Beijing-Xiongan intercity railway's Xiongan Railway Station in Xiongan New Area, north China's Hebei Province. The construction of Beijing-Xiongan intercity railway's Xiongan Railway Station has entered the final stage and the station will be put into operation by the end of this year. (Xinhua)