Huai river valley

• 淮河流域

Huai river valley的用法和样例：

例句

1. That afternoon we passed through the Hwai River region.
   那天下午我们经过淮河流域。
2. Mont scholars in Chinese dialectology believe that the northern border of ancient Wu dialect is Huai River.
   摘要汉语方言学界一般认为古吴语北至淮河流域。