bitumen [bəˈtu:mən]

例句:

• The solvent dilutes bitumen, making it easier to flow.
  来自WSJ
• a kilometre and a half of bitumen
  一公里半的柏油路面
  
• Bitumen paper can be burnt to gain energy.
  沥青纸可以焚烧以获得能量。
  
• In fact, a speciality crude is suitable only for bitumen production.
  事实上, 这种特性的原油只适宜于生产沥青.
  
• She says bitumen needs special treatment.
  来自VOA
• That makes bitumen a source of energy as pathetic and tragic as corn ethanol.
  来自SA