地铁是城市发展现代化的一个重要标志。本文分析了国内外城市地铁的构建、运营以及地铁在城市化进程中的作用，进而系统阐释了地铁对广州城市发展、社会生活及生态环境的影响和意义。%Metro development could be seen as a sign of urban modernization. In this paper the author analyzes the construction, operation and functions of metro in the urbanization process home and abroad, and further explains the significance of Guangzhou Metro to the city' s social life and ecological environment.
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