| 词源 |
know like a book. “Complete understanding” is the meaning of to know like a book, and the Americanism obviously dates from times when there were few books in most homes. Those that were present, like the Bible, were often committed to memory, hence the familiar expression. To know one’s book, a British saying, means something different—“to know one’s best interest, to have made up one’s mind.” To speak by the book, is to speak meticulously, and to speak or talk like a book is to speak with great precision, usually pedantically. |