英语词汇coal shaft怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	coal shaft
释义	Definition of coal shaft in English: coal shaft noun A shaft in a coal mine. Origin Early 18th century. Definition of coal shaft in US English: coal shaft noun A shaft in a coal mine. Origin Early 18th century.
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Definition of coal shaft in English: