filthify

例句：

1. 1. The factory has a reputation for producing filthy products.
   这家工厂以生产不卫生的产品而闻名。
2. 2.The river has been filthified by pollution from the nearby factories.
   附近的工厂的污染使得这条河流变得肮脏。
3. 3.The children were filthifying the floor with their toys.
   孩子们用玩具在地上弄脏了地板。