名词
中文翻译：大炮
同义词：
['gunpowder', 'cannonball', 'artillery例句：1. The army has a large cannon on its border.（军队在边境上有一个大型的大炮。）']
例句：
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1. The army has a large cannon on its border.
军队在边境上有一个大型的大炮。
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2.The cannon fired a loud bang.
大炮发出了响亮的砰声。
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3. The cannon was used to protect the city from invaders.
大炮被用来保护城市免受侵略者的攻击。