crispness
  易碎;精神爽快;清楚
  Crisp·ness, n. The state or quality of being crisp.
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  crispness
       n 1: a pleasing firmness and freshness; "crispness of new dollar
            bills"; "crispness of fresh lettuce"
       2: a style of expression that is direct and to the point; "the
          crispness of his reply"
       3: firm but easily broken [syn: brittleness, crispiness]