copy 成语
copycat
someone who copies another person
hard copy
printed page(s), paper with printed words or pictures You can check your work on the computer screen, but it's easier find errors on hard copy.
COPY DOWN
(separable) to record in writing
" Max told Mary about the idea. She copied it down and sold it to the highest bidder."
copy cat|cat|copy
n. Someone who copies another person's work or manner.

Usually used by children or when speaking to children.
He called me a copy cat just because my new shoes look like his.
master copy|copy|master
n. 1. A perfect text to which all copies are made to conform; a corrected version used as a standard by printers.
The master copy must be right, because if it isn't, the mistakes in it will be repeated all through the edition. 2. A stencil from which other copies are made.
Mr. Brown told his secretary to save the master copy so that they could run off more copies whenever they needed them. The master copy was too light so many of the copies didn't come out clear.
carbon copy
carbon copy A person or thing that closely resembles another, as in
Our grandson is a carbon copy of his dad. Originally this term meant a copy of a document made by using carbon paper. The linguistic transfer to other kinds of duplicate survived the demise of carbon paper (replaced by photocopiers, computer printers, and other more sophisticated devices). [c. 1870]