brief introduction:

"If I don't pass the exam, then it will truly be hell." Ou Yang Rong nodded, then turned and left.,Ou Yangrong remembered seeing a survival video on the internet before, where someone who had fallen into a deep pit used a long rope to tie a heavy object to one end and threw it outside the pit until it got entangled on a tree trunk, successfully rescuing himself.,This is not the clothes he was wearing before he fell.。

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