fortress [ˈfɔ:trəs]

以下由轻松背单词网站提供

n.堡垒，防御工事

a large strong building or group of buildings which can be defended from attack

They made an attempt on a fortress. 他们试图夺取这一要塞。
The soldier scaled the wall of the fortress by turret. 士兵通过塔车攀登上了要塞的城墙。