Students of Huazhong University of Science and Technology can find suitable tutors or corresponding Q&A/counseling resources in the following ways if they have any questions or need to make up lessons: 1. Contact the class counselor or student affairs office to learn about study guidance and related resources; 2. Find tutors or classmates to exchange and learn from each other through social platforms such as public class exchange platforms, WeChat groups and campus forums; 3. Inquire about the resources of related courses in the learning resource center, library or online education platform on campus, or consult in person in the teaching building or the relevant office of the Academic Affairs Office. Before putting forward supplementary requirements, we should first make clear our learning objectives and course progress, and then choose appropriate counseling resources to strengthen our learning effect.