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你是否知道为我们带来节日欣喜的礼花的来历? 是否想过如果没有我们祖先的伟大发明,那寂静的夜空哪来的这般灿烂夺目,令人陶醉呢?在那美不胜收的礼花造型后面还藏着什么秘密吗?
Do you know the origins of the fireworks that brought us festivals and delights? Have you ever imagined that, without the great invention of our ancestors, the dazzling night sky is brilliant and enchanting? What hidden secret it?