duplicate [ˈdju:plɪkeɪt]

以下由轻松背单词网站提供

n.复制品；v.复写，使加倍；adj.复制的，二倍的

to make an exact copy of something

The manager asks the secretary to duplicate the document. 经理让秘书复印这份文件。
This agreement is done in duplicate. 本协议书一式两份。