by the book
US /baɪ ðə bʊk/
UK /baɪ ðə bʊk/
1.
按規矩, 按章辦事
strictly according to the rules or established procedures
:
•
We have to do everything by the book to avoid any legal issues.
我們必須按規矩辦事，以避免任何法律問題。
•
The manager always runs the department strictly by the book.
經理總是嚴格按規章制度管理部門。