他多年来一直患有慢性背痛,并尝试了各种治疗方法。

He has suffered from chronic back pain for many years and has tried various treatments.

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He has suffered from chronic back pain for many years and has tried various treatments.

chronic 来自希腊语词根 chronos(时间),在医学上表示"长期的、慢性的",指疾病或问题持续很长时间且难以治愈。

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