2. Experience in joining the League: including the time and place of joining the League, the letter number of the volunteer, the name and contact information of the introducer, etc.
3. Duties in the League: including the time, place, work content and work results of duties in the League.
4. Reward and punishment: including the time and place of reward and punishment within the group and the reasons for winning the prize.
5. Other information: including other information related to the identity of the League members, such as participating in activities and evaluating the League members.