英语短语词组词汇closed book的音标、释义、翻译、用法及例句-英语短语词组词典-福建条码网

短语	closed book
释义	closed book a subject or person about which one knows nothing 完全理解不了的科目; 完全理解不了的人： accounting has always been a closed book to me. 会计学对我来说一直是一门完全理解不了的科目。
随便看	grailing grails grain grain alcohol grain alcohols Grain Boundaries grain boundary grain-boundary diffusion Grain Coast grain diminution grained grainedness grain elevator grain elevators grainer grainfield grainfields grain germ Grainger, Percy Aldridge grain growth grainier grainiest graininess graininesses graining

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