| 释义 | per·sist·en·cy \-nsē, -nsi\ noun
 (-es)
 Etymology: Middle French persistence + English -y
 : the quality or state of being persistent: as
 a.  : the continuance of an insurance policy in full force until death of the insured or completion of the term of the policy
 b.  : capacity (as of an animal) for long-continued production of a valuable product
 < a cow milking heavily but lacking persistency >
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