Seat belts prevent people in the car from serious injury in the following ways:
To keep people inside.People are thrown out from a car are four times more likely to (kill) than those who stay inside.
(protect)the strongest part of the body.Seat belts are designed to fix your body at (it)strongest parts. For an older child and adult, these parts are the hips and shoulders.
To spread out the force in an accident.Seat belts spread the force of the accident over a wide area of the body. Seat belts help keep your upper body away from the hard parts of the car if you stop (sudden)or are hit by another car.
To help the body to avoid a (fast)and deadly hit. the help of the seats, your body can have more time to slow down speed in an accident.
So, it is of great importance to help both the drivers and the passengers. It takes only a few (second)to buckle up(系好) once you get in the car, but this simple action could save your life. Why wouldn't you?