精疲力倦
      Explanation: Tired: tired, tired. Words still exhausted.
      Source: Qing Li Baojia "Bureaucrats" thirty-sixth back: "Tuan Zhitai trouble already by his fine fatigue strength tired. A second thought Jiuyi Tai bad temper, can not help but hate the cursed twice; They also thought of a return kindness, one can not help but shed tears and secretly. "