《宋史·列传·卷三十七》
知节移文书谴责他，王超才出兵，还是以中渡无桥为借口。
知节移书诮让之，超始出兵，犹以中渡无桥为辞。
Zhijie sent him a document condemning him, and Wang Chao would not send troops, still using the excuse that there was no bridge at Zhongdu.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 知节移书诮让之，超始出兵，犹以中渡无桥为辞。 [/INST] Zhijie sent him a document condemning him, and Wang Chao would not send troops, still using the excuse that there was no bridge at Zhongdu.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 知节移书诮让之，超始出兵，犹以中渡无桥为辞。
user
Zhijie sent him a document condemning him, and Wang Chao would not send troops, still using the excuse that there was no bridge at Zhongdu.
assistant