domestic telecommunication

例句：

1. 1.The company's domestic telecommunication services are widely used by the public.
   该公司的家庭电信服务被公众广泛使用。
2. 2. With the development of technology, domestic telecommunication has become more convenient and efficient.
   随着技术的发展，家庭电信变得更加便捷和高效。
3. 3. Domestic telecommunication is becoming an important part of people's daily life.
   家庭电信正成为人们日常生活的重要组成部分。