crumple zone

noun
🔊/ˈkrʌmpl zəʊn/
🔊/ˈkrʌmpl zəʊn/
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  1. the part of a car that is designed to crumple easily if there is an accident, to protect the people in the car(汽车的)防撞缓冲区Topics Transport by car or lorryc2