COPD is a chronic, debilitating lung disease that compromises quality of life and can cause premature death.

慢性阻塞性肺病是一种使人衰弱的慢性肺病，影响生活质量并会引起过早死亡。

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Known as "the kissing disease" since it is passed by close contact, this chronic condition is debilitating and may disrupt study.

这个病以“亲吻之病”闻名，因为它是通过亲密接触而传染的。这个慢性病会使人非常虚弱，可能会影响学习。

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He identified the role of occupation on the incidence of chronic and debilitating disease.

FORBES: Why Sitting Increases Your Risk of Dying Sooner