How to adjust the direction when the car body and the edge of the garage are trumpet-shaped when driving school backs?

When you go back to the warehouse, you can see from the right rearview mirror that if the car body and the garage sideline are splayed, the steering wheel will be corrected to the right. If it is inverted, the steering wheel is corrected to the left.

Similarly, from the left rearview mirror, if the side lines of the car body and the garage are splayed, the steering wheel is corrected to the left; If it is upside down, the steering wheel is corrected to the right.

The range of correction should not be too large, and the speed should be slowed down as much as possible. If the speed is too fast and it hasn't been corrected, the car butt has reached the back edge of the garage.