要塞 /yàosài/ angolul

fort [forts]▼(fortified defensive structure stationed with troops)
noun
[UK: fɔːt] [US: ˈfɔːrt]

fortress [fortresses]▼(fortified place)
noun
[UK: ˈfɔː.trɪs] [US: ˈfɔːr.trəs]