fit·ness /ˈfɪtnəs/
  適合,適當;健康,健身
  Fit·ness, n. The state or quality of being fit; as, the fitness of measures or laws; a person's fitness for office.
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  fitness
       n 1: the condition of being suitable; "they had to prove their
            fitness for the position" [syn: fittingness] [ant: unfitness]
       2: good physical condition; being in shape or in condition
          [syn: physical fitness, good shape, good condition]
          [ant: unfitness]
       3: fitness to traverse the seas [syn: seaworthiness]
       4: the quality of being qualified