《宋史·列传·卷五十一》
如延州的金明、塞门寨，镇戎的刘、定川二堡，渭州山外的羊牧隆城、静边寨等，都不能扼制抵挡住敌人的进攻。
若延州之金明、塞门砦，镇戎之刘璠、定川堡，渭州山外之羊牧隆城、静边砦，皆不能扼其来。
Jinding in Yan Prefecture, Saimenzhai, Liu and Dingchuan'erpu in Zhenrong, Yangmulongcheng and Jingbianzhai outside Weizhou Mountain, etc. failed to stop the enemy's attack effectively.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 若延州之金明、塞门砦，镇戎之刘璠、定川堡，渭州山外之羊牧隆城、静边砦，皆不能扼其来。 [/INST] Jinding in Yan Prefecture, Saimenzhai, Liu and Dingchuan'erpu in Zhenrong, Yangmulongcheng and Jingbianzhai outside Weizhou Mountain, etc. failed to stop the enemy's attack effectively.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 若延州之金明、塞门砦，镇戎之刘璠、定川堡，渭州山外之羊牧隆城、静边砦，皆不能扼其来。
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Jinding in Yan Prefecture, Saimenzhai, Liu and Dingchuan'erpu in Zhenrong, Yangmulongcheng and Jingbianzhai outside Weizhou Mountain, etc. failed to stop the enemy's attack effectively.
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