In the second half of twentieth century, the development of Megalopolis has been the mainbody of American urbanization.
摘要20世纪后半期,大都市连绵带的发展成为美国城市化的主要。
In the second half of twentieth century, the development of Megalopolis has been the mainbody of American urbanization.
摘要20世纪后半期,大都市连绵带的发展成为美国城市化的主要。
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