bumpern.保险杠；缓冲器n.满杯；特大的东西adj.丰盛的；特大的bumper system保险杠系统bumper gusset保险杆角撑板bumper strike同行支援罢工bumper injury[法] 碰撞伤bumper turret保险杠消防炮bumper magnet凸轨磁铁bumper spring缓冲弹簧bumper harvest丰收bumper bracket缓冲架bumper limiter撞击机限制器