英和和英

a duplicate copy

a duplicate copy

copy on a duplicator

make a duplicate or duplicates of

a duplicate copy as a reserve

triplicate copies

a duplicate copy of a securities note

original and duplicate

original and copy―duplicate copies

original and copy―duplicate copies

make multiple identical copies of

a duplicate copy of an original document

a duplicate copy of a contract

the act of copying or making a duplicate (or duplicates) of something

an exemplified copy

counterexample

repeated copying leads to a multiplication of errors

to measure cloth

to rebel against an authority

Converse

make a countercharge

to reciprocate

in inverse proportion [relation] to…

a foul blow

Similar poles repel each other.

by common consent

contradict

take exception to

expressing antithesis or opposition

count backwards