open range

• 开旷草原,广野牧场

open range的用法和样例：

例句

1. Many western states have open range laws that allow cattle to graze and wander on public lands, occasionally creating perilous conditions for motorists.
   很多美国西部州有广野牧场法，让家禽可以吃草溜达，偶然却给机动车驾驶人造成危险状况。