silt

例句：

1. 1. The river has been heavily polluted by the silt from the nearby factory.
   附近的工厂的淤泥污染了这条河。
2. 2. The engineer carefully removed the silt from the bottom of the tank.
   工程师小心翼翼地从水箱底部清除了沉积物。
3. 3. The construction crew had to deal with a lot of silt during the excavation process.
   在挖掘过程中，建筑工人不得不处理大量的沉积物。