per.sist.ence
n.(名词)The act of persisting.坚持不懈:坚持不懈的行为The state or quality of being persistent; persistency.See Synonyms at perseverance 执意,持久性:坚持的状态或品质;持续状态参见 perseveranceContinuance of an effect after the cause is removed:存留,后滞:在原因改变后继续影响:例句:persistence of vision.视觉后滞