1. Job application: When looking for a new job, you need to submit your resume to the potential employer.
2. Participate in social activities: If you want to join an organization or take part in some voluntary activities, you can submit your resume to show your skills and experience.
3. Academic application: If you apply for a postgraduate or doctoral degree course, you need to submit an academic resume to show your research experience and professional skills.
4. Business meetings: If you want to attend some business meetings or offline activities, you can show your experience and knowledge by submitting your resume to attract others' attention.