When you hear a third rocket go off it is to let you know that all the bulls have arrived inside the ring and a fourth and final rocket is sent off when all the bulls have been safely led into their pens 当你听到第三声枪响鸣起，它是让你知道所有的牛只已经到了斗牛场以及当牛只已经安全地回到它们的笼里，第四声和最后一次枪响才鸣起。
