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coal mine的意思是“煤矿，矿井”。这个词组通常用来描述矿井作业或煤炭开采过程。读音为：英 [kəʊl maɪn] 美 [koʊl maɪn]。
例句：
1. He was once a coal miner but now works in a mine-shaft-detection business. （他曾经是一名矿工，但现在从事矿井坑道探测业务。）
2. Coal mining has become a very dangerous and labor-intensive industry. （煤炭开采已经成为一项非常危险和劳动密集型的工作。）
3. Miners have been forced to use primitive methods of digging coal out of the ground. （矿工们不得不使用原始的方法从地下开采煤炭。）
4. Coal mining has a long history and is an essential industry in many countries. （煤炭开采有着悠久的历史，是许多国家的重要产业。）
5. Coal mining has been blamed for many environmental problems, including air and water pollution. （煤炭开采被指责引发了许多环境问题，包括空气和水污染。）
6. The coal miners' union has been fighting for better working conditions and higher wages for years. （煤矿工人工会多年来一直在争取更好的工作条件和更高的工资。）
7. The coal miners' strike lasted for months, causing a lot of economic hardship for the region. （煤矿工人罢工持续了几个月，给该地区造成了很大的经济困难。）
8. Many coal miners have suffered from health problems caused by long-term exposure to coal dust. （许多煤矿工人长期暴露在煤尘中工作，因此健康问题频发。）
9. The government has started to invest in new technologies to improve coal mining safety and efficiency. （政府已经开始投资新技术以提高煤炭开采的安全性和效率。）
10. Many people argue that coal mining should be phased out because of its negative environmental impact. （许多人认为煤炭开采应该逐步淘汰，因为其对环境造成了负面影响。)
总的来说，这个词汇短语常常用于描述煤矿工人以及他们的工作环境。虽然在现代技术的影响下，传统的煤炭开采方式正在逐步被淘汰，但这个行业仍然是一个重要的经济来源。
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