名词
中文翻译：煤矿工作
同义词：
['coal mining', 'coal industry', 'coal labor例句：1. The miners are working long hours to ensure the mines remain operational.（矿工们正在辛勤工作，以确保矿井能够继续运营。）']
例句：
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1. The miners are working long hours to ensure the mines remain operational.
矿工们正在辛勤工作，以确保矿井能够继续运营。
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2.The coal industry is facing a significant decline in demand due to environmental concerns.
由于环境问题，煤炭行业的需求大幅下降。
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3. Coal mining has been a major contributor to air pollution in many regions.
煤炭开采是许多地区空气污染的主要来源。