当务之急

Explanation: When the service: that should handle the matter. The most pressing current task to do things. 　　Usage: Partial official; as subject, object; used to judge the statement 　　Source: Qin Meng Ke, "Mencius on": "No I do not know who is also known, when the services of the emergency." 　　Examples: ~ This scholar, said China's ancient and modern history, said the history of Thailand near the ancient things. (However, Yin Qing Shen "Romance nations sequence") Thesaurus:  thing Unsuitable late, immediacy