His master was once confined to his bed with a dangerous illness.

有一次，他的主人生了一场大病。

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The illness is dangerous, because it is involved in half of all automobile accidents.

这种病很危险，因为在所有的交通事故中，有一半都与它有关。

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But recent studies suggest that noise could even be dangerous, increasing stress levels and risk of illness - the word "noise" does derive from the Latin "nausea" after all.

但最近的调查表示，噪音可能更具危险性，它使压力指数和患病的风险大为提高——“噪音”这个词源自于拉丁语，原意是作呕。

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In a piece called Measles: A Dangerous Illness, published in 1986, he movingly describes the sudden death of his daughter in 1962.

BBC: Measles: 'Extra MMR jab' offer in Swansea epidemic

No one wants convicted criminals or people with a history of dangerous mental illness to have access to guns.

WSJ: Mike Thompson: A Middle Path to Reducing Gun Violence

Two other employees are being treated for inhalation anthrax, the most dangerous form of the illness.

CNN: Neighbors mourn postal worker