1.
an unassailable stronghold, fortress, etc
攻不破的堡垒、 要塞等
2.
The citadel of the Commonwealth and Empire could not be stormed.
联邦和帝国的堡垒是攻不破的。
3.
The easiest way to capture a fortress is from within.
堡垒是最容易从内部攻破的。
4.
It's easier to capture a fort from inside.
堡垒更容易从内部攻破。
5.
Only with this huge force can the enemy's strongholds be taken and his last fortresses smashed.
有了这支大军，才能攻破敌人的坚固阵地，才能攻破敌人的最后堡垒。
6.
"Fort was Destroyed From the Inner ": Analyses on the Cause of Russian Communist Party Disorganization;
“堡垒从内部攻破”:苏共灭亡原因的组织分析
7.
They forced the enemy's stronghold.
他们攻占了敌人的堡垒。
8.
armed capture of a place under siege
被围攻的堡垒陷落.
9.
The mountain upon which they then advanced had been turned into veritable fortresses.
他们前进准备攻击的山头已经变成了不折不扣的堡垒。
10.
Our troops carried the enemy's fort.
我们的军队攻占了敌人的堡垒。
11.
This is a strong fort which defies attack.
这是一个坚固的堡垒，可以抵御攻击。
12.
attempts to capture this well-protected fortress
夺取这座坚固堡垒的多次进攻.
13.
At dawn, we stormed the enemy's stronghold.
拂晓时，我们猛攻了敌人的堡垒。
14.
You are to take the enemy stronghold before dawn.
你们必须在凌晨前攻下敌人的堡垒。
15.
They defended the fort against enemy's heavy attack.
他们守着堡垒抗拒敌人的猛攻。
16.
They held the fort apainst all attacks.
他们坚守堡垒,抵抗所有的进攻。
17.
So he shut himself up in his castle, whose impregnable strength was such as defied a siege.
所以他把自己关在他的城堡里，那城堡盖得牢不可破，经得起围攻。
18.
Fort: Forts are the best way to fight off invasions from angry monarchs.
堡垒：当愤怒的海岛王进攻你的国家时，利用堡垒是最好的防御方法。