Unknown. According to the relevant information of Zheng's personal data, I didn't find out how many daughters Zheng had. Male, Han nationality, 70 years old, from Taiwan Province Province, China, chairman of China Mingmen Children's Products Co., Ltd., director of China Disabled People's Welfare Foundation, chairman of Wen Ya Children's Listening and Language Teaching Foundation, and honorary consultant of World Merchants Federation. Won the title of "honorary citizen of Dongguan" in the third batch. Zheng's youngest daughter was born deaf. After listening and oral rehabilitation training, she is now a fluent travel program host. Since 2008, China Hearing and Speech Rehabilitation Research Center has cooperated with Wen Ya Children's Listening and Language Teaching Foundation in Taiwan Province Province, China, which has paved the way for the spread and promotion of China's listening and speaking method in Chinese mainland. Through the close cooperation of 1 1 year, more than 300 Chinese listening and speaking teachers in 3/kloc-0 provinces (autonomous regions and municipalities) have been trained, helping hundreds of hearing-impaired children out of the silent world and bringing hope to many families.