| 摘要 |
An insert for a magazine or book has a recording medium compartment defining a top edge, a bottom edge and two lateral side edges. Two of the edges are closed at all times, one of the edges is initially open for passage therethrough of a recording medium into the compartment (and then closed), a nd another of the edges is initially closed but openable for passage therethrou gh of the recording medium out of the compartment.
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