《后汉书·列传·郭陈列传》
等到王莽篡位，召陈咸以为掌寇大夫，陈以病为由不肯就职。
及莽篡位，召咸以为掌寇大夫，谢病不肯应。
When Wang Mang usurped the throne, he summoned Chen Xian to serve as the chief criminal investigator, but Chen cited illness as an excuse not to take office.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 及莽篡位，召咸以为掌寇大夫，谢病不肯应。 [/INST] When Wang Mang usurped the throne, he summoned Chen Xian to serve as the chief criminal investigator, but Chen cited illness as an excuse not to take office.</s>
Explain the meaning of this Classical Chinese passage in English: 及莽篡位，召咸以为掌寇大夫，谢病不肯应。
user
When Wang Mang usurped the throne, he summoned Chen Xian to serve as the chief criminal investigator, but Chen cited illness as an excuse not to take office.
assistant