《明史·志·卷五十九》
请求疏通旧黄河以减缓上游的水势，堵塞黄河决口以防下游之患。 
请浚旧河以杀上流之势，塞决河以防下流之患。 
Requesting to dredge the old Yellow River to ease upstream water pressure and block the Yellow River levee breach to prevent downstream flooding.
<s>[INST] First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 请浚旧河以杀上流之势，塞决河以防下流之患。  [/INST] 请求疏通旧黄河以减缓上游的水势，堵塞黄河决口以防下游之患。  Then, Requesting to dredge the old Yellow River to ease upstream water pressure and block the Yellow River levee breach to prevent downstream flooding.</s>
First, translate the Classical Chinese text into modern Chinese and then into English. Classical Chinese: 请浚旧河以杀上流之势，塞决河以防下流之患。
user
请求疏通旧黄河以减缓上游的水势，堵塞黄河决口以防下游之患。  Then, Requesting to dredge the old Yellow River to ease upstream water pressure and block the Yellow River levee breach to prevent downstream flooding.
assistant