磬笔难书

Explanation: The fact that very many words, even if it is difficult to write the whole run pen. Qing and Tong "exhausted." "Lu reasonable": "euphemistically disorder to the country of birth also, not to count, to make more of Jing Zhu, still can not book." "Old Tang Chuan Li Mi": "Chime Nanshan Bamboo, the book is not the crime poor; decided the East China Sea waves and currents Nanjin evil. " 　　Source: "Lu reasonable" euphemistically disorder to the country of birth also, not to count, to make more of Jing Zhu, still can not book. "" Old Tang Li Mi Biography "Bamboo chime Nanshan, books, crime is not poverty; decided the East China Sea waves and currents Nanjin evil."