Is this a duplicate or the original?

这是副本还是正本？

《牛津词典》

A skilled locksmith can duplicate many types of keys just by looking at the original.

一名老练的锁匠只要看一眼原物就可以复制出许多类型的钥匙。

youdao

Or you can duplicate and edit existing application code while leaving the original mixed UI and business logic in place.

或者，可以复制和编辑现有的应用程序代码，同时保留最初的UI和业务混合的情况。

youdao

Spin-offs are now an established part of TV but few ever duplicate the success of the original.

BBC: NEWS | Entertainment | TV's obsession with spin-offs

If a person uploads a file that has already been uploaded by someone else, no duplicate is made and the original is just shared in its place.

FORBES: Morning Tech Wrap: Microsoft, RIM, Apple