They made an attempt on a fortress.

他们试图夺取一要塞。

They hoped to get into the enemy fortress under cover of darkness.

他们希望在夜幕的掩护下进入敌人的要塞。

The easiest way to capture a fortress is from within.

堡容易从内攻破的。

The archaeologists excavated an ancient fortress.

考古学家们发掘出一个古堡。

The friary seemed to have been fortified in such a way as to resemble a fortress.

修道院似乎被强化如同堡一样。

The fortress is an imposing building.

座城堡一座宏伟的建筑。

The strong fortress mocked the invaders.

坚固的堡使入侵者无法攻入。

They will establish impregnable fortresses.

他们将建造坚不可摧的城堡。