vig·or /ˈvɪgɚ/
  精力,活力
  vigor
  活力,萌發勢
  Vig·or n.
  1. Active strength or force of body or mind; capacity for exertion, physically, intellectually, or morally; force; energy.
     The vigor of this arm was never vain.   --Dryden.
  2. Strength or force in animal or vegetable nature or action; as, a plant grows with vigor.
  3. Strength; efficacy; potency.
  But in the fruithful earth . . .
  His beams, unactive else, their vigor find.   --Milton.
  Note: ☞ Vigor and its derivatives commonly imply active strength, or the power of action and exertion, in distinction from passive strength, or strength to endure.
  Vig·or, v. t. To invigorate.  [Obs.]
  ◄ ►
  vigor
       n 1: an exertion of force; "he plays tennis with great energy"
            [syn: energy, vigour]
       2: active strength of body or mind [syn: vigour]
       3: an imaginative lively style (especially style of writing);
          "his writing conveys great energy" [syn: energy, vigour,
           vim]