fortress
n. 堡垒,要塞
A fortress is a castle or other large strong building, or a well-protected place, which is intended to be difficult for enemies to enter.
...a 13th-century fortress.
13 世纪的堡垒
1. a fortified defensive structure
Akuma trains endlessly day and night on his fortress island Gokuentou.
豪鬼日夜不停地在狱炎岛上修行.
They deride every fortress, For they heap up dirt and take it.
他们嗤笑一切保障, 堆筑土垒攻取.
They made an attempt on a fortress.
他们试图夺取这一要塞.
The enemy yielded a fortress.
敌人(被迫)放弃了要塞.
The friary seemed to have been fortified aa fortress.
修道院似乎被强化如同堡垒一样.