railway greening

例句：

1. 1. The railway line is being renovated to improve the greening of the area.
   这条铁路线正在翻新，以改善该地区的绿化。
2. 2.The company has invested heavily in railway greening projects to enhance its environmental performance.
   该公司在铁路绿化项目上投入了大量资金，以提高其环境表现。
3. 3. The government has introduced stricter regulations on railway greening to protect wildlife habitats.
   政府已经引入了更严格的规定来保护野生动物栖息地。