1. 1. Communicate with relevant departments of the school and military training instructors, explain the reasons why they can't participate in military training, and seek solutions.

2. Secondly, according to the regulations and requirements of the school, provide necessary supporting documents and reasons to support the situation that you can't participate in military training.

3. Finally, negotiate with the school to arrange alternative study and activity plans to make up for the influence of not being able to participate in military training.