词汇 | closed book |
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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