1. Different circles: Taizhou dialect circle, which is generally called Tairu (Taizhou-Rugao) dialect film or Tongtai (Nantong-Taizhou) dialect film academically, is a sub-region of Xiajiang Mandarin (also known as Jianghuai Mandarin), while the scope of Putonghua is relatively much larger.
2. Different locations: Taizhou dialect circle is located in the core area of central Jiangsu, and its geographical location is the sea in the east, the Yangtze River in the south, the Huaihe River in the north and Yangzhou in the west. The spread of Putonghua has covered the whole country.
3. The spread trend is different: Taizhou dialect circle has been on the edge of Yangzhou, Nantong and Yancheng for a long time since the prefecture-level Taizhou was abolished. Because there is no central city to rely on, its culture also shows signs of decline, while Mandarin has been in an upward trend.
Extended information:
Some phonetic elements of Taizhou dialect are the same as those of Putonghua. For example, 16 of the 21 initials in Mandarin are the same as those in Taizhou dialect; 18 of the 39 vowels in Putonghua are the same as those in Taizhou dialect; The tone of four tones in Mandarin is the same as that in Taizhou dialect.
In addition, Taizhou people can't pronounce or pronounce l(le), but Taizhou people can't pronounce or pronounce zh, ch, sh, R, that is, there is a big difference in pronunciation.
Besides the vowels in Putonghua, Taizhou people's pronunciation is mostly weakened, and one vowel falls off, resulting in the defect of "single vowel"; Putonghua includes soft tone, Er Hua, "ah" tone change, upper tone change and "one, no" tone change.