The life in a big city is alluring for the young people.

大都市生活对年轻人颇具诱惑力。

Metropolitan residents are used to fast rhythm.

大都市居民习节奏。

The newcomer is not used to the heavy traffic in big cities.

新来者对大都市拥挤交通不习。

In the second half of twentieth century, the development of Megalopolis has been the mainbody of American urbanization.

摘要20纪后半期，大都市连绵带发展成为美国城市要内容。