《宋史·本纪·卷二十八》
十八日，修筑采石、宣化渡二城。
庚辰，筑采石、宣化渡二城。
On the 18th, the cities of Caishi and Xuanhuadu were repaired.
<s>[INST] 对于下面每对文言文和现代汉语段落, 请创作一个能够体现核心信息的英语翻译: 文言文: 庚辰，筑采石、宣化渡二城。 现代汉语: 十八日，修筑采石、宣化渡二城。 [/INST] On the 18th, the cities of Caishi and Xuanhuadu were repaired.</s>
对于下面每对文言文和现代汉语段落, 请创作一个能够体现核心信息的英语翻译: 文言文: 庚辰，筑采石、宣化渡二城。 现代汉语: 十八日，修筑采石、宣化渡二城。
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On the 18th, the cities of Caishi and Xuanhuadu were repaired.
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