名词
中文翻译：深坑
同义词：
['deep well', 'deep shaft', 'deep hole', 'deep pit']
例句：
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1. The miningcompany has been digging a deep open pit to extract coal.
这家矿业公司一直在挖掘一个深坑来开采煤炭。
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2.The construction crew has started work on the deep open pit, hoping to complete it within the next year.
施工队已经开始在深坑工作，希望明年内完成。
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3. The deep open pit is a significant environmental concern due to its potential impact on wildlife habitats.
深坑是一个重大的环境问题，因为它可能对野生动物栖息地产生影响。