A booster seat is a type of child seat used in vehicles to raise a child up so that the car’s seat belt fits properly. It is designed for children who have outgrown a car seat but are still too small to safely use an adult seat belt. The booster seat helps position the seat belt across the child’s chest and lap, reducing the risk of injury in the event of an accident. It is often used until the child is tall enough to use the seat belt without additional assistance, typically around the age of 8 to 12 years.

“booster seat”的英语定义和含义

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