ex·er·tion /ɪgˈzɝʃən/
 儘力,努力,行使,發揮


 Ex·er·tion n. The act of exerting, or putting into motion or action; the active exercise of any power or faculty; an effort, esp. a laborious or perceptible effort; as, an exertion of strength or power; an exertion of the limbs or of the mind; it is an exertion for him to move, to-day.
 Syn: -- Attempt; endeavor; effort; essay; trial. See Attempt.

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 exertion
      n : use of physical or mental energy; hard work; "he got an A
          for effort"; "they managed only with great exertion"
          [syn: effort, elbow grease, travail, sweat]