How many languages are there in Huaiji?

A few days ago, Lan Qingyuan, a researcher at the Institute of Ethnic Studies of the Chinese Academy of Sciences, and experts and scholars from the Guangdong Institute of Ethnic Studies once again came to Yonggu and Shidong Town, Huaiji County, Guangdong Province, the "standard dialect" spoken by local villagers for generations, and said that the local "standard dialect" is different from Guangfu dialect, Hakka dialect and Chaoshan dialect in Guangdong. According to researcher Lan Qingyuan's preliminary research, the ancestors of the Han people in Huaiji who spoke standard words moved from the Central Plains during the Warring States Period more than 2,2 years ago, hundreds or even thousands of years earlier than the ancestors of the Han people who spoke vernacular words in Huaiji County. This group of people was called "standard-talkers" by local villagers who spoke vernacular words. After the ancestors of "Biaojian" moved to Huaiji Shidong, Yonggu and other places, they lived together with the local Baiyue indigenous people (ancestors of Zhuang and Dong), and their languages merged with each other, gradually forming a unique "Biaojian". According to experts, because the "Biaojian" lives in the mountains with inconvenient transportation and has little contact with the Han people who speak vernacular Chinese, "Biaojian" has been passed down from generation to generation and has been used all the time, and has the reputation of "living fossil" in ancient Cantonese. According to scholars, the "standard talker" has lived in the intersection of Han and Zhuang nationalities since ancient times, and has followed the traditional language and customs of Han and Zhuang nationalities and become a unique "standard talker". "Telling the standard" not only keeps the syllables of ancient Chinese, but also combines some languages of Zhuang and Dong, which is very difficult to understand.