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关注:1
2013-05-23 12:21
求翻译:coal: a hard black or dark brown sedimentary rock formed by the decomposition of plant material, widely used as a fuel.是什么意思? 待解决
悬赏分:1
- 离问题结束还有
coal: a hard black or dark brown sedimentary rock formed by the decomposition of plant material, widely used as a fuel.
问题补充: |
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