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京沪高铁的“里程碑”意义应该是它本身的速度和建设规模所带来的。京沪通道是一条维系我国国民经济发展的大动脉,自古以来,这条“走廊”就一直处于紧
The “milestone” of the Beijing-Shanghai high-speed railway should be brought about by its own speed and scale of construction. The Beijing-Shanghai Corridor is a major artery that maintains the development of our national economy. Since ancient times, this “corridor” has always been tight