earthworks ['ɜ:θwɜ:ks]

例句:

• Europe's biggest Stone Age earthworks are at Silbury Hill in Wiltshire.
  欧洲石器时期最大的土木防御工事位于威尔特郡的西尔布利山。
  
• Raised earthworks inside the city walls could greatly reduce the effects of artillery bombardment.
  城墙以内突起的土木工事可以大大减少大炮轰击的效果.
  
• A fuze delay allows penetration of dense woods and light earthworks.
  用于炮弹穿透浓密的林木和轻型土木工事.
  
• Patrick Crouch manages another urban farm called Earthworks.
  来自VOA
• The London-based Keller said the earthworks contract was its biggest yet in Russia.
  来自THETIMES