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词汇 closed book
类别 英译汉、英汉双解翻译词典
释义
closed book
noun [ S ] informal uk/ˌkləʊzd ˈbʊk/ us/ˌkloʊzd ˈbʊk/
一无所知的学科,完全不懂的学科
a subject about which you know or understand nothing
I'm afraid physics will always be a closed book to me. 恐怕我对物理永远是一窍不通了。
Synonyms: enigmamysterysecret
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