河北“肃宁”在当地被读为/?y ni?/,保留了当地方言精组合口字韵母的前化和声母的舌面化的演变特点。这种演变方式和普通话不同,但和周边方言有相似之处。经过比较研究我们发现这种演变大致经历了一个su>sy>?y的过程,但受普通话影响没有继续发展下去,仅限于精组合口三等的某些入声字当中。 Hebei “Suning ” was read as / ni y ni / /, preserving the evolutionary characteristics of the verbal vowels of the fine dialect of the local dialect and the initials of the consonants. This evolution is different from that of Mandarin, but it has similarities with the surrounding dialects. After a comparative study, we found that this evolution has undergone a process of su> sy>? Y, but the effect of mandarin has not continued to develop.