Whether or not to use dialects in formal situations is not directly related to professionalism. Professionalism is usually determined by a person's knowledge, ability, etiquette, and communication skills, rather than the language or dialect used. However, in some cases, using standard language may be more widely understood, especially when participants come from different regions or backgrounds. At the same time, language is closely related to culture, and dialects can convey specific cultural backgrounds and emotions. Therefore, in some occasions, using dialects may be more intimacy and authenticity. What is important is to be able to communicate effectively in formal situations and choose the appropriate communication method according to the object and environment.