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    1. 首頁英語詞典gunpowdergunpowder英英釋意

      gunpowder

      英 ['g?npa?d?] 美['ɡ?npa?d?]
      • n. 火藥;有煙火藥

      英英釋意


      1. a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks