head restraint
柯林斯词典
1. N an adjustable support for the head, attached to a car seat, to prevent the neck from being jolted backwards sharply in the event of a crash or sudden stop 头部保护装置; 安装在汽车座位上，防止因发生撞车或突然停车造成司机脖子受伤
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1. N an adjustable support for the head, attached to a car seat, to prevent the neck from being jolted backwards sharply in the event of a crash or sudden stop 头部保护装置; 安装在汽车座位上，防止因发生撞车或突然停车造成司机脖子受伤