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	round-by-round round character round characters round clam round clams round dance round ... down round down rounded roundedly roundedness roundednesses roundel roundelay roundelays roundels rounder round-eye round-eyed round-eyes round-faced round-faceds round figure round figures round file

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。