例句
The museum guide showed us an old gunpowder barrel.
博物馆讲解员给我们看了一个旧火药桶。
The introduction of gunpowder changed military technology and influenced the design of defensive structures in many regions.
火药的引入改变了军事技术，也影响了许多地区防御建筑的设计。
常用搭配
- the invention of gunpowder｜火药的发明
- a barrel of gunpowder｜一桶火药
- gunpowder storage｜火药储存
用法提示
不可数名词；一桶火药用a barrel of gunpowder。