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A worker cleans a Fuxing bullet train at a maintaining base in Beijing, capital of China, Feb. 2, 2018. Workers here spare?no efforts to maintain high-speed trains for serving the Spring Festival travel rush. (Xinhua/Shen Bohan)
A worker cleans a Fuxing bullet train at a maintaining base in Beijing, capital of China, Feb. 2, 2018. Workers here spare?no efforts to maintain high-speed trains for serving the Spring Festival travel rush. (Xinhua/Shen Bohan)