| 单词 | 煤区 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔expert〕He has been in the coal region experting the fields for the company.他一直在产煤区,以专家身份为公司检查煤田情况。英汉大词典〔winning〕A section of a mine that has been recently prepared or opened for working.备采煤区：最近已为工作准备好或开放的矿区的一部分美国传统 |
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