| 单词 | closed book, a |
| 释义 | closed book, aA secret, mystery, or puzzle, as in I can't figure her out; she's a closed book to me. This term alludes to information one can't obtain or comprehend (because the book is closed). [Early 1900s] Words nearby closed book, aaclasis, aclastic, acle, acleistocardia, aclinic line, closed book, a, A.C.L.S., ACLU, ACM, acme, acmeism The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. |
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