《资治通鉴·汉纪·汉纪十》
柯江宽几数，从番禺城近旁流过。 
牂柯江广数里，出番禺城下。 
The Kejiang River is several hundred steps wide and flows by Panyu City. 
<s>[INST] Kindly elucidate the central themes in this passage in English: 牂柯江广数里，出番禺城下。  [/INST] The Kejiang River is several hundred steps wide and flows by Panyu City. </s>
Kindly elucidate the central themes in this passage in English: 牂柯江广数里，出番禺城下。
user
The Kejiang River is several hundred steps wide and flows by Panyu City.
assistant