strongholds [ˈstrɔ:ŋˌhəʊldz]

以下由轻松背单词网站提供

附加级

要塞( stronghold的名词复数 )；据点；某事业备受支持的地方；根据地

The enemy was holed up in a few isolated strongholds. 敌人龟缩在几个孤立的据点里。
The enemy strongholds fell one after another. 敌方据点相继被攻破。