breach|breached|breaches

敌军在城墙的防御工事上打开了一个突破口。

The enemy army created a ___breach in the defensive wall.

士兵们攻破城墙发动进攻。

The soldiers ___breached the city wall to launch their attack.

敌人在城墙的缺口处发起了进攻。

The enemy attacked through the ___breaches in the fortress walls.