词汇 | 壁垒森严 |
释义 | 壁垒森严壁垒森严[bì lěi sēn yán]1.■ (防守很严密) strong defense preparations; a well-organized institute; strongly fortified; an unassailable stronghold; be heavily; closely guarded; The military breastwork is stiff. 常用词组1.■ (界限划得很分明) sharply divided |
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