Gunpowder
01
火药, 黑火药
a type of powder that is explosive, used in making bullets, bombs, etc.
例子
Gunpowder, also known as black powder, is a mixture of potassium nitrate, charcoal, and sulfur.
火药，又称黑火药，是硝酸钾、木炭和硫磺的混合物。
The invention of gunpowder revolutionized warfare by enabling the development of firearms and cannons.
火药的发明通过使枪支和大炮的发展成为可能，从而彻底改变了战争。
