沃特卢

例句：

1. 1. The river flows through the city, providing fresh water for the people.
   这条河流流经城市，为人们提供新鲜水源。
2. 2. The fish in the lake are swimming happily.
   湖里的鱼在欢快地游动。
3. 3. We need to ensure that the water quality is safe for drinking.
   我们需要确保水质安全，适合饮用。