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This photo taken on April 20, 2025 shows a shield tunnel along the east sixth ring road in Beijing. [Photo/China Railway 14th Bureau Group Co., Ltd./Handout via Xinhua] ...
Constructors pose for a group photo in front of the portals at one end of a shield tunnel along the east sixth ring road in Beijing, April 20, 2025. [Photo/China Railway 14th Bureau Group Co., Ltd ...
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