| environ. | urban sprawl The physical pattern of low-density expansion of large urban areas under market conditions into the surrounding agricultural areas. Sprawl lies in advance of the principal lines of urban growth and implies little planning control of land subdivision. Development is patchy, scattered and strung out, with a tendency to discontinuity because it leap-frogs over some areas, leaving agricultural enclaves | 城市扩张 (市场条件下城市地区向周围农村地区进行低密度扩张的物理模式，扩张是以城市开发为主线推进，意味着对土地划分控制的较少规划。开发是零碎的、分散的、缓慢的，有不连续的倾向，因此它跨越过了一些地区，造成了农业上的飞地。) |
