没有任何现代机器，在那荒无人烟，遥远偏僻的土地上修筑和重修这样一座长城是非常困难的。
It was very difficult to build and rebuild such a Great Wall over wild and distant country without any modern machines.
没有任何现代机器，在那荒无人烟，遥远偏僻的土地上修筑和重修这样一座长城是非常困难的。
It was very difficult to build and rebuild such a Great Wall over wild and distant country without any modern machines.
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