Most scholars in Chinese dialectology believe that northern border of ancient Wu dialect is Huai River.
汉语方言学界一般认为古吴语北至淮河流域.
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This dissertation is a special research on the mediaeval history of the Chinese dialectology.
“颜师古注引方俗语研究”是汉语方言学史中古阶段的专题研究.
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