Through the comparison of the shared dialectal words between two dialectal regions, the author calculates the number of the shared words, hence, to study the overlapped words between the two regions.

• 本文通过两两方言区之间的共有词比较，得出每两个方言区之间的相同共有词数，依此判断两个方言区在词汇上的交叉关系。