Translation of China's classical cursive script?

Prime Minister Zhang likes to write cursive script, but it is not neat. At that time, all my peers laughed at Prime Minister Zhang, but he didn't agree. One day, Prime Minister Zhang suddenly thought of a good poem and quickly wrote it down with a pen. The words on the paper dance like dragons and snakes. Prime Minister Zhang asked my nephew to write it down. When my nephew saw the zigzag position of Chinese characters, he stopped and was puzzled. He couldn't read the word clearly, so he took the notebook and asked the Prime Minister Zhang, "What is this word?" Prime Minister Zhang stared at it for a long time, but he didn't know it himself, so he blamed his nephew: "Why didn't you ask earlier? I forgot! "