1. Ý Nghĩa
By the book: (làm điều gì đó) chính xác như được quy định, tuân theo các quy tắc, thủ tục đã được thiết lập một cách tỉ mỉ và có hệ thống.
2. Ví dụ/Examples
Bob’s the kind of guy who always does things by the book, no matter how simple the task.
Sometimes you’ve got to make an exception; you can’t always do everything by the book.
Instead of going by the book and sticking to the office dress code, I wore jeans to work today.
They aced the exam by the book, studying every night and following all the tips from the textbook.
When it comes to cooking, I prefer to go by the book and follow the recipe step by step.
We don’t have to do this project by the book; just let our imagination run wild.
He’s a strict supervisor who expects everything done by the book—no shortcuts or improvisation.