城市居住区基本上是由一大批住宅和其他建筑物,再加上相当多的常住人口所组成。其中建筑的位置是永久性的,这些建筑同其他同样的居住区分隔开,并紧凑地排列着。至于一个居住区应该有多少人口才能列为一个城市,尽管人们对此一直没有绝对一致的看法,但通常至少是在2500人到10000人之间。从历史上来说,大量的人口持久地集居在一起而形成居住区,是由于两种截然不同的方式产 Urban settlements are basically composed of a large number of dwellings and other buildings, plus a considerable number of permanent residents. The location of the buildings is permanent, and these buildings are separated from other similar residential areas and are arranged compactly. As for how many people in a neighborhood should be listed as a city, there is generally no consensus at all, but it is usually between 2,500 and 10,000 people. Historically, large numbers of people have been living together inhabited to form residential areas due to two very different ways of producing