counterfort retaining wall

例句：

1. 1. The enemy launched a counterfort against our troops' advance.
   敌军对我们的军队进攻发起了反击。
2. 2. The engineers reinforced the wall with concrete to create a stronger counterfort.
   工程师用混凝土加固了墙壁，以增强其防御能力。
3. 3.The soldiers were ordered to construct a counterfort in case of an attack.
   士兵们被命令在遭到攻击时建造一个防御工事。