Remedial measures for not joining the league in senior high schools include: applying for joining the league and participating in volunteer activities.

1. Apply to join the * * * Youth League: In universities, schools and student unions often organize recruitment activities of the * * * Youth League, participate in these activities and apply to the organization to join the * * * Youth League.

2. Participate in volunteer activities: In universities, schools and social organizations, they often hold various volunteer activities, participate in activities and show their group organizational spirit and social responsibility through active participation.