英语词汇closed books怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	closed books
释义	closed book [口语] 无法理解的天书，不可捉摸之物，深𪪞难懂(或高深莫测)的东西，难理解的事物，完全不懂的学科已解决的问题，已了解的事，无须再考虑的问题
随便看	inspective inspector inspectoral inspectorals inspectorate inspectorates inspector general inspector generals inspectorial Inspector Javert inspector of taxes inspectors inspectoscope inspectress inspectresses in speed Insp Gen Insp. Gen. insphere insphered inspheres insphering inspirable inspiration inspirationalism

英汉双解词典包含483723条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。