The whole point of Trash and its utility is shown above:
but technically, if you had 10 files in trash, and wanted only to delete numbers 3, 6 and 9; then you could open trash, select the others and drag them to the desktop. Then empty Trash. Then, I suppose, put the others back. But what a waste of time.
Message is: only put in Trash what you want to delete. As pointed out above.
Ian