2. Poisonous chemicals got into the water supply. 有毒的化学药品进入了供水系统。
3. Cleaning up the water supply is their top priority. 清洗供水系统是他们的首要任务。
4. The town is without electricity and the water supply has been cut off. 这个镇上已经断电停水了。
5. Wealth depends to a great extent upon a country's natural resources, such as coal, gold, and other minerals, water supply and so on. 一国财富在很大程度上受其自然资源影响,比如:煤炭、黄金或其他矿物质、水源等等。