1、对健康构成潜在威胁 pose a threat to health
2、供应不足 be in short supply
3、化学污染物 chemical pollutant
4、节水的习惯 water-saving habit
5、水的'分布 distribution of water
6、水资源保护 water conservation
7、水资源短缺 water shortage
8、饮用水 drinking water
9、有害物质 hazardous material
10、在危险中 at risk
11、被耗尽 be exhausted
13、达到高效 achieve high efficiency
14、当场处罚 on-the-spot fine
15、对环境不利 be unfriendly to the environment
16、环境恶化 environmental degradation
17、火灾隐患 a fire hazard
18、垃圾的回收和处理 litter collection and disposal
19、垃圾分类 garbage classification
20、破坏环境 ruin the environment
21、提高大众的环保意识 promote the public awareness of environmental protection; arouse peoples awareness of environmental protection