黄河故道一带也是发病率较高的地区。
Also the incidence in the former Yellow River vally was high.
youdao
河流的故道已经被填平，修成公路了。
The old river course has been filled up and remade into a driveway.
我想为那天的事故道歉。
I want to apologize about the inccindent the other day.
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