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壁垒

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thành luỹ; ranh giới; công sự; trận tuyến

line of demarcation/division 哲学上的两大 壁垒 two rival camps in philosophy; two diametrically opposed philosophical theories [ 相关词条 ] 壁垒森严 closely/heavily guarded; strongly fortified

漢越 bích luỹ