Gb	Eng
她从指甲里剔掉污垢.	She cleaned the dirt from her finger-nails.
他擦去地板上的污垢。	He scoured off the dirt from the floor.
我怎样才能把墙上的污垢去掉呢?	How can I get the dirt off the walls?
藏污纳垢的地方肮脏的、令人恶心或道德败坏的场所	A filthy, disgusting, or morally corrupt place.