2. Find a fixed point: find a fixed point suitable for fixing the seat belt inside the gondola car, such as the armrest and the fixed structure at the bottom of the seat.
3. Pass the seat belt through the body: Pass the seat belt through the body from the shoulder or waist, ensuring that one end of the seat belt is above the shoulder and the other end is below the waist.
4. Fasten the seat belt: Insert one end of the seat belt into the fixed point and ensure that the buckle is firmly locked.
5. Adjust the tightness: adjust the tightness of the seat belt as needed to make it close to the body but not too tight.
6. Check the seat belt: check whether the seat belt is fixed firmly again to ensure that the seat belt is not loose or twisted.