sanitation standard operation procedure

例句：

1. 1. The city government is committed to improving the sanitation of its streets.
   市政府致力于改善其街道的卫生状况。
2. 2. The sanitation workers are responsible for cleaning up after trash.
   环卫工人负责清理垃圾后的工作。
3. 3. The new sanitation regulations aim to reduce pollution and improve public health.
   新的卫生规定旨在减少污染并改善公共健康。