1.When answering, clearly introduce the name and function of the program or app, and briefly explain what it is mainly used for (e.g., communication, study, entertainment, work). 2.Describe how and when you usually use this app, such as daily, for specific tasks, or in your free time. 3.You should also mention how you discovered or downloaded this app, and share your feelings or opinions about it, such as its convenience, usefulness, or impact on your life.