sprawl
/sprɔl/
an aggregation or continuous network of urban communities
中文释义：城市蔓延；无计划扩展
Urban sprawl has consumed vast areas of farmland around the city.
城市蔓延吞噬了城市周边大片农田。
The suburban sprawl makes public transportation inefficient.
郊区的无序扩展使得公共交通效率低下。