Gunpowder
01
火药, 黑火药
a type of powder that is explosive, used in making bullets, bombs, etc.
例子
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。
火药, 黑火药
