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In this aerial photo taken on March 14, 2018, a bullet train passes by rape flower fields while operating on the Xi'an-Chengdu high-speed line in Jiangyou, southwest China's Sichuan Province. (Xinhua/Xue Yubin)
In this aerial photo taken on March 14, 2018, a bullet train passes by rape flower fields while operating on the Xi'an-Chengdu high-speed line in Jiangyou, southwest China's Sichuan Province. (Xinhua/Xue Yubin)