framed barrage

例句：

1. 1. The city was surrounded by aframed barrage of artillery.
   这座城市被一堵被包围的炮轰所包围。
2. 2. The enemy launched a framed barrage to attack our position.
   敌人发起了一次围攻来攻击我们的阵地。
3. 3.The defenders were forced to hold theirpositions under a framed barrage.
   防守方在被围攻的情况下被迫坚守阵地。