But anxiety can become a problem when it becomes persistent or is out of proportion to the situation.

但是，一旦这种担忧持续时间过长或有些过度，就有可能演变为一种问题。

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Our situation is very very very difficult but we are persistent to come to a solution because without reconciliation we can not do anything.

我们的处境非常非常艰难，但我们坚持要解决问题，因为如果不实现和解，我们什么都干不了。

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The latter is an excessive and persistent fear of an object or situation that interferes with a person's ability to function or carry out desired activities, Dr. Barlow says.

WSJ: After Fatal Manhattan Elevator Accident, Elevator Fear Is Common

This is an intolerable situation reflecting one of the most persistent injustices of our times: unequal access to education.

UNESCO: International Literacy Day