《北史·列传·卷六十九》
洛京郊、丘所在之处，用的是郑玄的解释。 
洛京郊丘之处，用郑解。 
The location of the suburbs and hills in Luoyang is based on Zheng Xuan's explanation.
<s>[INST] Kindly elucidate the central themes in this passage in English: 洛京郊丘之处，用郑解。  [/INST] The location of the suburbs and hills in Luoyang is based on Zheng Xuan's explanation.</s>
Kindly elucidate the central themes in this passage in English: 洛京郊丘之处，用郑解。
user
The location of the suburbs and hills in Luoyang is based on Zheng Xuan's explanation.
assistant