crash helmet
柯林斯词典
1. N-COUNT A crash helmet is a helmet that motorcyclists wear in order to protect their heads if they have an accident. (騎摩托車人帶的)防撞頭盔
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crash helmet (crash helmets)
剑桥词典
- a hard hat that covers and protects the whole head , worn especially by motorcyclists
（尤指摩托車手戴的）防護頭盔，安全帽 返回 crash helmet