coal mine
柯林斯词典
1. N-COUNT A coal mine is a place where coal is dug out of the ground. 煤鑛
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coal mine (coal mines)
剑桥词典
- the deep hole or system of holes under the ground from which coal is removed
煤鑛
coal mining
noun [ 不可數或單數名詞：沒有複數形式的名詞 ] ukYour browser doesn't support HTML5 audio
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the business , job , or process of removing coal from the ground
煤鑛業，開採煤鑛（的工作或過程） 返回 coal mine