infiltration [ˌɪnfɪlˈtreʃən]

例句:

• The southward infiltration of Albanian and Slav into districts formerly Romanized.
  来自J. L. Myres
• The police tried to prevent infiltration by drug traffickers.
  警方尽力阻止毒品走私分子的潜入.
  
• A loss in volume will occur if infiltration takes place.
  如果发生了渗润作用,水量就会减少.
  
• The project was being whittled down into a guerrilla infiltration.
  这个计划已缩小成一种游击战术式的渗入.
  
• The only hint of human infiltration of these pastures came from distant sheep.
  来自A. Powell
• Alleged Communist infiltration into the Oxford branch of the National Union of Railwaymen.
  来自Times