porous [ˈpɔrəs, ˈpor-]

例句:

• Swimming is helpful for bones that are porous and weak.
  游泳有助于改善骨质疏松和骨骼脆弱。
  
• The water slowly drained away, down through the porous soil.
  水慢慢流走了，渗入了疏松的土壤。
  
• He added sand to the soil to make it more porous.
  他往土里掺沙子以提高渗水性能.
  
• Leaks can occur if the flashing...becomes porous with age.
  来自Which?
• Leather's porous, it lets your skin breathe.
  来自J. Wain
• The bigger it is the more porous its borders.
  来自SA