(250428) -- GUANGZHOU, April 28, 2025 (Xinhua) -- A staff member operates a giant shield tunneling machine at the construction site of a linking-up line connecting Guangzhou Railway Station and Guangzhou South Railway Station in Guangzhou, south China's Guangdong Province, April 28, 2025. The construction of the linking-up line connecting Guangzhou Railway Station and Guangzhou South Railway Station has recently been accelerated. The linking-up line will improve the transportation accessibility of the city after its completion. (Xinhua/Liu Dawei)