《明史·志·卷六十四》
堵塞延安、绥德溃决河口，绵州西岔河通到江边的堤岸。
筑延安、绥德决河，绵州西岔河通江堤岸。
The breached river mouths of Yan'an and Suide were blocked, and the dike on the west fork of the Mianzhou River reached the river.
<s>[INST] Kindly elucidate the central themes in this passage in English: 筑延安、绥德决河，绵州西岔河通江堤岸。 [/INST] The breached river mouths of Yan'an and Suide were blocked, and the dike on the west fork of the Mianzhou River reached the river.</s>
Kindly elucidate the central themes in this passage in English: 筑延安、绥德决河，绵州西岔河通江堤岸。
user
The breached river mouths of Yan'an and Suide were blocked, and the dike on the west fork of the Mianzhou River reached the river.
assistant