| 词汇 | 壁垒森严 |
| 释义 | 壁垒森严 bi lei sen yan ㄅㄧˋ ㄌㄟˇ ㄙㄣ ㄧㄢˊ 1.strong defense preparations; an unassailable stronghold 2.strongly fortified; closely guarded 3.with a clear-cut line of demarcation; a strong sense of partisanship; sharply divided |
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