duplicate
verb [ T ] uk/ˈdʒuː.plɪ.keɪt/ us/ˈduː.plə.keɪt/
复制，拷贝
to make an exact copy of something
The documents had been duplicated. 这些文件已经被复印过了。
Parenthood is an experience nothing else can duplicate. 当父母是任何其他经历都无法比拟的。
duplicate
adjective [ before noun ] uk/ˈdʒuː.plɪ.kət/ us/ˈduː.plə.kət/
复制的;完全一样的
being an exact copy of something
The thieves were equipped with duplicate keys to the safe. 窃贼带着配好的保险柜钥匙。
Keep a set of duplicate keys in a safe place, in case you lose the originals.
duplicate
noun [ C ] uk/ˈdʒuː.plɪ.kət/ us/ˈduː.plə.kət/
复制品;副本
something that is an exact copy of something else
I lost the original form so they sent me a duplicate. 我把表格的原件给丢了，所以他们又寄给了我一份副本。
in duplicate 一式两份，有正副本
If a form is in duplicate, an exact copy has been made of it.
The application has to be completed in duplicate. 申请表格必须填写一式两份。
They will send a draft contract in duplicate.
Please fill these forms out in duplicate and file the top copy of each with our office.
They exchanged signatures on a document written in duplicate.
We need to submit documents in duplicate with original signatures.