《资治通鉴·唐纪·唐纪七十五》
汴州军队攻打徐州，连续几个月未能攻克。
汴军攻徐州，累月不克。
The Bianzhou army attacked Xuzhou for several months without success.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 汴州军队攻打徐州，连续几个月未能攻克。 [/INST] 汴军攻徐州，累月不克。</s>
Convert the following modern Chinese text into Classical Chinese: 汴州军队攻打徐州，连续几个月未能攻克。
user
汴军攻徐州，累月不克。
assistant