Xiao Jing and Xiao Mei are worrying the exam result of A Tao. They often observed A Tao studied very hard in the library. However, his exam result eventually comes out to be unsatisfactory. The reason behind is ...


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Xiao Jing and Xiao Mei are worrying the exam result of A Tao. They often observed A Tao studied very hard in the library. However, his exam result eventually comes out to be unsatisfactory. The reason behind is ...