1. Running: jogging on campus or in a nearby park every morning and evening for 20-30 minutes can enhance heart and lung function and burn fat.

2. Push-ups: Doing 10-20 push-ups in the open space of dormitory or school can exercise the strength of chest muscles, shoulders and arms.

3. Sit-ups: Doing 15-20 in bed or on the floor can strengthen abdominal muscles and lumbar muscles.

4. Skipping rope: Do it on campus or indoors, and jump for 10- 15 minutes each time, which can exercise cardiopulmonary function and calf muscles.

5. Yoga: Do it at home or in the school library. Choosing simple yoga movements and practicing for 20-30 minutes each time can enhance flexibility and body balance.

6. Swimming: Swimming in the school swimming pool, 2-3 times a week for about 30 minutes each time, can exercise and relax.

7. Walking fast: Walking fast on or near campus for more than 30 minutes at a time can increase heart and lung function and burn calories.

8. Cycling: Cycling on or near campus 15- 20 minutes at a time can exercise thigh and hip muscles.

9. Flat support: It can strengthen the core muscles and back muscles by doing it for more than 30 seconds in the open space of dormitory or school at a time.

10. Healthy diet: keep a balanced diet, eat more healthy foods such as vegetables, fruits, lean meat and fish, and avoid too much greasy and junk food.

Please note that before carrying out any fitness activities, please consult a doctor or professional coach first, and choose the exercise mode and intensity suitable for you according to your physical condition and ability.