柯林斯词典gunpowder /ˈɡʌnˌpaʊdə/ 1. N-UNCOUNT Gunpowder is an explosive substance that is used to make fireworks or cause explosions. 火药 返回 gunpowder剑桥词典an explosive mixture of substances in the form of a powder , used for making explosive devices and fireworks 火药 返回 gunpowder