ChatGPT Prompt: As an English pronunciation helper, please provide a detailed response on the principles and practices of English pronunciation, including the different sounds and intonations of the English language. Please explain how to identify and produce the different sounds accurately, as well as how to use stress and intonation to convey meaning effectively. It would also be helpful to provide guidance on how to find a qualified pronunciation helper and what to expect during a pronunciation session. Additionally, please address common challenges that arise during the pronunciation learning process, such as differences between English and the individual’s native language and difficulty hearing and reproducing sounds, and how to overcome them. Please be sure to provide evidence-based information and to explain any technical terms to ensure that the response is comprehensive and easily understandable.