英语词汇“a closed book”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	a closed book
释义	a closed book noun : a person or thing that is difficult to understand Even to his closest friends, he was always something of a closed book.
随便看	edits edits (out) edits out EDL EdM Edmond Edmonds edmonta Edmonton edmontoniae edmontonian edmontonians edmontonias edmontons edmontosauri edmontosauruses edmontosaurusses Edmund edn ednl edo Edom Edomite edomites edos

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

a closed book