名词中文翻译
中文翻译：石炭
同义词：
['limestone', 'lime']
例句：
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1.The ochthium was used as a building material in ancient times.
古代，石灰石被用作建筑材料。
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2. The ochthium is mined from the earth and then processed into bricks.
石灰石从地下开采出来，然后加工成砖块。
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3. The ochthium is commonly used to make cement.
石灰石通常用于制造水泥。