living green fence

例句：

1. 1. The city has been trying to install more living green fences to improve air quality.
   这个城市一直在尝试安装更多的绿色围栏，以改善空气质量。
2. 2.The farmer decided to build a living green fence around his vegetable garden to protect it from the elements.
   这位农民决定在他的蔬菜园周围建造一个绿色的围栏，以保护它免受恶劣天气的影响。
3. 3. The new park is designed with living green fences that provide privacy and natural beauty.
   这个新的公园设计有绿色的围栏，既提供了隐私，又带来了自然的美丽。