《资治通鉴·汉纪·汉纪五十八》
十二月，曹操从安定班师，留夏侯渊驻守长安，任命议郎张既为京兆尹。
十二月，操自安定还，留夏侯渊屯长安。以议郎张既为京兆尹。
In December, Cao Cao returned from Anding, leaving Xiahouyuan to guard Chang'an, and appointed Zhang Ji, the Yilang, as the Prefect of Jingzhao.
<s>[INST] Translate to English, please: 十二月，操自安定还，留夏侯渊屯长安。以议郎张既为京兆尹。 [/INST] In December, Cao Cao returned from Anding, leaving Xiahouyuan to guard Chang'an, and appointed Zhang Ji, the Yilang, as the Prefect of Jingzhao.</s>
Translate to English, please: 十二月，操自安定还，留夏侯渊屯长安。以议郎张既为京兆尹。
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In December, Cao Cao returned from Anding, leaving Xiahouyuan to guard Chang'an, and appointed Zhang Ji, the Yilang, as the Prefect of Jingzhao.
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