副词
中文翻译：慢性地
同义词：
['chronologically', 'persistently', 'perpetually例句：1. He has been suffering from chronic pain for years.（他多年来一直遭受慢性疼痛的折磨。）']
例句：
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1. He has been suffering from chronic pain for years.
他多年来一直遭受慢性疼痛的折磨。
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2. The disease is chronologically classified as a type of cancer.
这种疾病按时间顺序分类为一种癌症类型。
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3. The patient was diagnosed with chronic fatigue syndrome.
患者被诊断出患有慢性疲劳综合症。