In fact, the people most likely to become chronic excuse makers are those obsessed with success.

事实上，最有可能成为长期找借口的人是那些沉迷于成功的人。

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If left untreated, the condition may become chronic.

如果得不到治疗，此病可能会转成慢性。

《柯林斯英汉双解大词典》

The condition can become chronic, especially when a person has repeated colds.

条件可以成为慢性的，尤其是当一个人反复感冒。

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But sometimes physical pain can become chronic, long outlasting its original purpose, and emotional pain is the same.

BBC: How emotional pain can really hurt

"Usually a negative life event causes the insomnia, but catastrophizing, negative thinking and worrying make the insomnia become chronic, " says Sivertsen.

FORBES: Magazine Article

The curious question is why the inflammation would become chronic in atherosclerosis, when in the case of most infections it is transient.

ECONOMIST: Bugged by disease