英语词汇a closed book (to sb)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	a closed book (to sb)
释义	●a closed ˈbook (to sb)a subject or person that you know nothing about 对之一窍不通的事物；不了解的人 See also book
随便看	machinima machining machinist machinists machismo machismos macho machoism machoisms machos machs mach's macing macintosh macintoshes mack mack macked mackerel mackereling mackerels roasting roasting hot roastingly roastings

英汉双解词典包含314281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。