an open book

US 
UK 
  • un.不可告人的谜;公开坦白
  • Web摊开的书;尽人皆知的事物;一本公开的书
un.
1.
不可告人的谜
2.
公开坦白

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard