greenbelt

名词 greenbelt:

1. a belt of parks or rural land surrounding a town or city
   同义词：greenway

green.belt

n.（名词）
A belt of recreational parks, farmland, or uncultivated land surrounding a community.
绿化带：环绕一社区的由娱乐公园、农田和未开垦地组成的地带