名词中文翻译
中文翻译：铁石
同义词：
['ironstone', 'iron ore']
例句：
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1.The ancient city of Rome was built on a bed of iron-stone.
罗马古城建立在铁石之上。
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2. The iron-stone mine is one of the largest in the world.
这个铁石矿是世界上最大的之一。
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3. The iron-stone was used to make tools and weapons for centuries.
铁石被用来制作工具和武器几个世纪。