什么是 sprawl?To sit or lie with the body and limbs spread out awkwardly.To spread out in a straggling or disordered fashion: untidy tenements sprawling toward the river. To cause to spread out in a straggling or disordered fashion.A sprawling position or posture.Haphazard growth or extension outward, especially that resulting from real estate development on the outskirts of a city: urban sprawl.