Gunpowder is the explosive powder that makes guns fire, bombs burst, and many fireworks go up. The old kind — black powder — is a mix of charcoal, sulfur, and saltpetre, and it smokes a lot; modern smokeless powders in cartridges are different chemistry, but everyday English still calls the stuff that shoots a gun gunpowder. It smells sharp when it burns.

Gunpowder火藥 is the explosive powder是那種爆炸性的粉末 that makes guns fire讓槍能發射 bombs burst讓炸彈會爆炸 and many fireworks go up也讓很多煙火能升空 The old kind — black powder舊式的黑火藥 is a mix of charcoal, sulfur, and saltpetre是木炭、硫磺和硝石混合而成 and it smokes a lot燃燒時會冒很多煙 modern smokeless powders in cartridges現代彈藥裡的無煙火藥 are different chemistry化學成分不同 but everyday English但日常英文 still calls the stuff that shoots a gun gunpowder還是把讓槍發射的那種東西叫gunpowder It它 smells sharp聞起來味道很嗆 when it burns燃燒的時候

Armies store it; festivals pack it into fireworks; history books say it changed war. It was first made in China, then spread.

Armies軍隊 store it儲存它 festivals節慶 pack it into fireworks把它裝進煙火裡 history books歷史書 say it changed war說它改變了戰爭 It它 was first made in China最早是在中國發明的 then spread後來才傳開

It is usually uncountable: some gunpowder, a barrel of gunpowder.

It它 is usually uncountable通常是不可數名詞 some gunpowder可以說some gunpowder（一些火藥） a barrel of gunpowder（一桶火藥）

Though actually, gunpowder tea is not this: that is green tea rolled into little pellets that look a bit like grains of powder. This entry is the explosive.

Though actually不過其實 gunpowder tea gunpowder tea is not this說的不是這個 that is那是 green tea rolled into little pellets捲成一顆顆小球的綠茶 that look a bit like grains of powder看起來有點像火藥顆粒 This entry這篇字典 is the explosive講的是爆炸物那個意思