dirt  
noun [ U ] uk/dɜːt/ us/dɝːt/
  (NOT CLEAN)            
 B1 尘土,泥土,灰尘
dust, soil, or any substance that makes a surface not clean
  His coat was covered with dirt. 他的外套上满是泥土。 
 Synonyms: filthgrime (DIRT)grunge (DIRT) muck smut (DIRT)
  mainly US泥土 
soil on the ground
  I've been digging in the dirt, planting seeds. 我一直在挖泥埋种子。 
  informal污物 
solid waste
  I got some dog dirt on my shoes. 我的鞋沾上了一些狗屎。 
 - More examples
- We were revolted by the dirt and mess in her house.
- Light-coloured carpets show the dirt.
- The folds of the curtains were blackened with dirt.
- Picture the scene - the crowds of people and animals, the noise, the dirt.
- Pimples form when pores become blocked with dirt.
  (GOSSIP)      
 informal(私生活的)丑闻 
unpleasant or bad details about someone's private life that are repeated or published to influence people's opinion of them in a negative way
  Journalists are always digging for (= trying to discover) dirt. 记者总想挖到丑闻。