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English
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Russian
Closed book
Translation closed book into russian
closed book
The history of the ancient civilization is a closed book to most people.
История древней цивилизации — это закрытая книга для большинства людей.
Definitions
A closed book refers to a subject or topic that is not open for discussion or exploration, often implying that it is a mystery or something that is not easily understood. It can also refer to a person who is difficult to read or understand emotionally.