《汉书·志·地理志下》
观津县，王莽时叫朔定亭。
观津，莽曰朔定亭。
Guan Jin County, which was called Shuo Ding Ting in Wang Mang's time.
<s>[INST] 请提供这段文言文的现代汉语解释: 观津，莽曰朔定亭。 [/INST] 观津县，王莽时叫朔定亭。</s>
请提供这段文言文的现代汉语解释: 观津，莽曰朔定亭。
user
观津县，王莽时叫朔定亭。
assistant