file copying造句

There are many channels of electronic communication including e-mail, Web-based e-mail, instant messaging, messages sent from a Bloomberg terminal, mobile e-mail sent from a handheld device such as a BlackBerry, general use of a web browser, ftp, file copying ( e . g . memory sticks ) and many others.
It was taken over by Randall Gellens in 1984, at which point the library maintenance ( file copying, moving, renaming, and deleting ) routines were rewritten to allow for significantly expanded capabilities, a slew of utilities were added using the " ? " syntax ( allowing them to be used even while a program was running ), and several architectural improvements were made.
It's difficult to find file copying in a sentence. 用file copying造句挺难的

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