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	clamp connection clamp down clamp down (on) clamp down on clamp on clamp screw clamp strake clampdown clampdowns clamped clamped down clamped down (on) clamped down on clamped on clamper clampered clampering clampers clamping clamping circuit clamping down clamping down (on) clamping down on clamping on clamping screw

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