抱关执籥

Explanation: Holding latch, get the key. Xiaoli's position that the prison doors. 　　Source: Han Yong, "Berkshire prefect thank Edition": "Accepting the arduous tasks known, non-chen from long honor. Dingchou this month, a chapter from the press, begging hold off implementation of the first redundant Yue, unexpectedly recorded a very young character, a thousand miles of any grant . "