"A broken halberd sinks in the sand, but the iron is not sold, and it will be washed away to recognize the former dynasty."
These two sentences mean that the broken halberd sank in the sand and was not destroyed. , he polished it and recognized it as a relic from the previous dynasty. Here, these two descriptions seem plain but are actually unfair. There are broken halberds buried in the sand, pointing out the historical events that took place here. The halberd was broken but not destroyed by the sand, implying that time has passed and things have changed. It was the discovery of this rusty "broken halberd" that had been buried at the bottom of the river for more than 600 years that made the poet think a lot, so he had to clean it up and identify it, and found that it turned out to be a remnant of the Battle of Chibi. Weapons coming down. In this way, the relics of the previous dynasty further aroused the author's imaginative thoughts, which laid a good foundation for the subsequent writing.