by ·phrase (IDIOM)
Definition: to do something exactly as the rules tell you Level: C2
要获得官方批准，我们必须严格按照规章制度办事。
To get official approval, we must ___do everything ___by ___the ___book.
有些人认为，那些总是循规蹈矩做事的人缺乏灵活性。
Some people believe that those who always ___do things ___by ___the ___book lack flexibility.
审计员坚称，整个财务流程都是完全按照规章执行的。
The auditors insisted that the entire financial process had been ___done ___by ___the ___book.