英語翻譯：

dirty; filthy

例句：

1. 污垢常引起疾病。
   Dirt often bring on disease.
2. 我怎樣才能把墻上的污垢去掉呢？
   How can I get the dirt off the walls?
3. 她從指甲里剔掉污垢。
   She cleaned the dirt from her finger-nails.
4. 他擦去地板上的污垢。
   He scoured off the dirt from the floor.