《资治通鉴·唐纪·唐纪五十六》
乙酉，李派兵攻打朗山，淮西兵前去援救，官军失利。
乙酉，愬遣兵攻朗山，淮西兵救之，官军不利。
Yiyou, Li sent troops to attack Langshan, and the Huai Xi soldiers went to the rescue, and the government forces were defeated.
<s>[INST] Provide a modern Chinese interpretation of the following Classical Chinese passage: 乙酉，愬遣兵攻朗山，淮西兵救之，官军不利。 [/INST] 乙酉，李派兵攻打朗山，淮西兵前去援救，官军失利。</s>
Provide a modern Chinese interpretation of the following Classical Chinese passage: 乙酉，愬遣兵攻朗山，淮西兵救之，官军不利。
user
乙酉，李派兵攻打朗山，淮西兵前去援救，官军失利。
assistant