The boy who lost the manhole cover in Taizhou cleverly set a mark to remind him. What problems can the boy's actions avoid?

The boy's action can avoid the problem of people stepping on the manhole cover unintentionally, and can also avoid the problem of people squeezing the manhole cover while driving.

A little boy put up an eye-catching sign on the manhole cover. The little boy's behavior makes people feel very warm. Such eye-catching signs can avoid many problems.

For example, it can avoid the phenomenon that people don't see the manhole cover when driving, which leads to the lower limit of the car. It can also avoid the situation that people accidentally step on the manhole cover and fall off.

The little boy's actions can avoid potential safety hazards. When we were walking on the road, we found that some manhole covers were similar in color to the road surface. If some people have poor eyesight or myopia, they may not be able to tell the difference between a manhole cover and a road surface.

When they pass by, they may not be able to avoid the manhole cover. So when many people pass by it, they may fall into the sewer.

The little boy set up an eye-catching sign on the manhole cover, so that people could see at a glance that there was a manhole cover and they could avoid passing through it.

Little boy, his actions can prevent people from passing through the manhole cover while driving, leading to the lower limit of the car. Usually when riding an electric car or motorcycle, passing through the manhole cover may cause the vibration of the car. Because the height of the manhole cover is different from the height of the road surface, when you pass that place, it may cause the lower limit of the car.

If an eye-catching sign can be set up in that place, people will know that there is a manhole cover there. When you know there is a manhole cover, you will try your best to walk around it, which will not cause the phenomenon of the lower limit of the car.

The little boy's behavior can prevent some people from stepping on the air. Some people have poor eyesight, so they may step empty when walking. But if a sign is set there, people can see that there is a problem at a glance, and they will pay attention to avoid it when walking, so it is not easy to step on it.