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coal-mining engineer是什么意思，coal-mining engineer的翻译，coal-mining engineer音标、读音、用法和例句_乐豆毛深蓝词典
乐豆毛深蓝词典

coal-mining engineer

C 开头单词

基本解释

  • [經濟學]採煤工程師

专业释义

    經濟學

  • 採煤工程師