back copy
noun🔊/ˈbæk kɒpi/
🔊/ˈbæk kɑːpi/
(also back number)
(both British English) (also back issue British and North American English)
a copy of a newspaper or magazine from a date in the past 过期的报纸（或杂志） I have a few back copies of the newspaper. 我有几份过期的报纸。