Speaking Mandarin with an accent does not necessarily make people feel unprofessional, because professionalism depends on one's professional knowledge, skills and work attitude. Language accents may affect the clarity and understanding of communication, but they are not a measure of a person's professional ability. In a professional environment, the most important thing is to be able to communicate your ideas and expertise effectively, rather than focusing only on the accent. Many successful professionals have different accents, and their professionalism is not compromised. However, in certain specific fields, such as broadcasting and hosting, standard Mandarin pronunciation may be more valued because clear and standard pronunciation has an important impact on the audience's understanding and acceptance. Therefore, whether you have an accent or not, it is really important to stay confident, professional, and work hard to improve your communication skills and expertise.