bridgehead greening

例句：

1. 1. The city has been working on a bridgehead greening project to improve its environment.
   该市一直在进行一个桥头绿化项目，以改善其环境。
2. 2. The greening of the bridgehead area has greatly improved the aesthetics of the cityscape.
   桥头区域的绿化大大改善了城市景观的美观度。
3. 3. The greening efforts have also helped to reduce pollution and promote sustainability in the urban environment.
   绿化工作也有助于减少污染并促进城市环境的可持续性。