carbon copy
noun [ C ] uk/ˌkɑː.bən ˈkɒp.i/ us/ˌkɑːr.bən ˈkɑː.pi/
(DOCUMENT)
(also carbon)复写本
a copy of a document, made with carbon paper
(SAME APPEARANCE)
极为相似的人（或物）;翻版
a person or thing that is very similar to or exactly like another person or thing
She's a carbon copy of her mother. 她跟她母亲长得一模一样。