duplicated documentation

• 复印件

duplicated documentation的用法和样例：

例句

1. New copies of the form can be duplicated from a master copy.
   复印原件可以得到这份表格的新复印件。
2. Duplicated notes were distributed to the class at the end of each lecture.
   每次上课结束时向全班分发注释复印件。