flue [flu]

例句:

• Nabokov...wrote about the flue of a nymphet's arm.
  来自Observer
• The flue has become sooted up.
  烟道里都是黑灰.
  
• The fire won't burn because the flue is blocked up.
  因烟道堵塞火烧不起来.
  
• If the flue overdraws, all the heat goes right up the chimney.
  如果风管抽风过度的话, 热量就会从烟囱直接跑掉了.
  
• The flue was relined, but the fire still smoked.
  来自WSJ
• The outlet of a flue should be well above the roof.
  来自J. S. Foster