an open book的意思|示意

An Open Book: Usage and Meaning

In English, the phrase “an open book” is used as an idiom to denote someone who is easily read or understood, or someone who is completely honest, transparent and open about their thoughts and feelings. Generally, when someone is said to be “an open book”, it implies that the person is very transparent and honest about their private thoughts and feelings, willing to openly share them with friends, family, and even strangers.

The origin of the phrase “an open book” comes from the idea that the pages of a book are wide open, thus making its content easily readable. By extension, if someone is said to be an open book, this is meant to suggest that they are similarly open and transparent, allowing people to easily access their thoughts and feelings.

The phrase can be used either literally or figuratively. For example, one could literally tell a friend that they are “an open book” and that they can ask them anything, because they are willing to answer honestly. Alternatively, one could figuratively say that they are an “open book” when discussing someone else, to suggest that the individual is transparent and easy to read.

In conclusion, the phrase an open book is an idiom used to describe someone who is honest and open about their thoughts and feelings. It is generally used to express admiration for someone who is willing to be completely transparent about their innermost thoughts.