Dong Yuhui memorized calligraphy in 7 steps, and his memory skyrocketed Dong Yuhui memorized calligraphy in 7 steps, and his memory skyrocketed Dong Yuhui memorized calligraphy in 7 steps, and his memory skyrocketed Dong Yuhui memorized calligraphy in 7 steps, and his memory skyrocketed