sudd

例句：

1. 1. The river flows through the town, providing sudd water for the residents.
   这条河流流经这个城镇，为居民提供水源。
2. 2. The scientist conducted experiments to test the hypothesis that sudd water could be used asa solvent.
   科学家进行了实验来测试这个假设，即淡水可以作为溶剂使用。
3. 3.Sudd water is essential for agriculture and irrigation in many parts of the world.
   在世界上许多地方，淡水对于农业和灌溉至关重要。