| 摘要 |
A file folder includes a reinforced receptacle, a locking mechanism to secure engagement between a cover and a body of the receptacle, a first envelope immovably received in the receptacle and multiple secondary envelopes sequentially correlated to one another and movably received inside the receptacle such that movement of a reinforced board which is securely engaged with a rearmost secondary envelope is able to pull all the secondary envelopes out of the receptacle.
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