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堡垒（指固守一种生活方式等的体制或组织）
If a system or organization is described as a bastion of a particular way of life, it is seen as being important and effective in defending that way of life. Bastion can be used both when you think that this way of life should be ended and when you think it should be defended.
例句
...a town which had been a bastion of white prejudice...
一度固守着白人偏见的城镇
...a bastion of spiritual freedom...
精神自由的堡垒