a rocket designed to explode high in the air as a signal or firework (作为信号或焰火的)冲天火箭
(-rocketed, -rocketing)
[no obj.](informal)(of a price, rate, or amount) increase very steeply or rapidly (非正式)(价格、比率或数量)急速增长,猛长 the cost of the welfare system has skyrocketed. 福利系统费用急速增长。