In pics: light decorations at Old Street area in Qilihe District of Lanzhou
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Photo taken on Jan. 4, 2021 shows light decorations at the Old Street area in Qilihe District of Lanzhou, northwest China's Gansu Province. (Xinhua/Ma Xiping)

Photo taken on Jan. 4, 2021 shows light decorations at the Old Street area in Qilihe District of Lanzhou, northwest China's Gansu Province. (Xinhua/Ma Xiping)

Aerial photo taken on Jan. 4, 2021 shows light decorations at the Old Street area in Qilihe District of Lanzhou, northwest China's Gansu Province. (Xinhua/Ma Xiping)

Aerial photo taken on Jan. 4, 2021 shows light decorations at the Old Street area in Qilihe District of Lanzhou, northwest China's Gansu Province. (Xinhua/Ma Xiping)

Photo taken on Jan. 4, 2021 shows light decorations at the Old Street area in Qilihe District of Lanzhou, northwest China's Gansu Province. (Xinhua/Ma Xiping)

Aerial photo taken on Jan. 4, 2021 shows light decorations at the Old Street area in Qilihe District of Lanzhou, northwest China's Gansu Province. (Xinhua/Ma Xiping)