in triplicate

in triplicate — idiom

1. A document is produced in triplicate when the original is made together with two

1.慣用語B1
釋義

A document is produced in triplicate when the original is made together with two identical copies of it.

例句

The secretary printed the contract in triplicate, giving one copy to each party.

in triplicate — one original + two copies

Visa forms must be submitted in triplicate so each office keeps a signed copy.

passive + purpose: submitted in triplicate so that...

用法筆記

Used mainly in administrative, legal, and official contexts to specify that three copies of a document are needed. The phrase typically follows passive constructions (be prepared / be submitted / be written in triplicate).

常見錯誤

The form was prepared in duplicate, one for each of the three offices.
The form was prepared in triplicate, one for each of the three offices.
💡'duplicate' means two copies; 'triplicate' means three copies.