《旧唐书·列传·卷一百零八》
及至李吉甫死去，皇上正征讨淮、蔡，便将朝廷机要事务都委托武元衡处理。
及吉甫卒，上方讨淮、蔡，悉以机务委之。
After Li Jifu’s death, the emperor, who was engaged in a campaign against Huai and Cai, entrusted Wu Yuanheng with the most important affairs of state.
<s>[INST] Provide a modern Chinese interpretation of the following Classical Chinese passage: 及吉甫卒，上方讨淮、蔡，悉以机务委之。 [/INST] 及至李吉甫死去，皇上正征讨淮、蔡，便将朝廷机要事务都委托武元衡处理。</s>
Provide a modern Chinese interpretation of the following Classical Chinese passage: 及吉甫卒，上方讨淮、蔡，悉以机务委之。
user
及至李吉甫死去，皇上正征讨淮、蔡，便将朝廷机要事务都委托武元衡处理。
assistant