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1·Perseveration is susceptibility to interference from previous stimuli.

持续言语是指对既往刺激的抗干扰能力受损。

2·And though perseverance can be an admirable trait and is essential for all success in life, when taken too far it becomes perseveration - uncontrollable repetition - or simple perversity.

尽管恒心毅力是个令人羡慕的品质并且是成功必不可少的要素，但是一旦过度它就变成了固执——不可控制的重复——或者简单的坚持。