Chinese L visa expiration?

Chinese L visa expiration? - Writing Down Blessings

So I am a US citizen and I have a Chinese L visa for multiple entries that was issued in June 2012, the enter before date was June 2013. I am planning to travel to China in a month (August) and was wondering if my visa is still valid or I should apply for a new one. Thanks!

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MY CHINESE VISA EXPIRED!!! What’s next???

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Images: Alan Wang, Sandra Peng, 竟傲汤, Miguel Á. Padriñán