柯林斯词典lighting-up time 1. N the time when vehicles are required by law to have their lights switched on 汽车按法律规定必须的开灯时间 返回 lighting-up time剑桥词典the time in the afternoon or evening when the law states that vehicles must have their lights switched on （法律规定的）车辆开灯时间 返回 lighting-up time