He was later discovered to be seriously ill.

后来才了解到他患了重病。

《牛津词典》

She became seriously ill and had to be institutionalized for a lengthy period.

她病情严重，不得不被长期收容治疗。

《柯林斯英汉双解大词典》

Experts say a person who harms themselves only slightly may be just as seriously ill as one who takes an overdose.

专家们说，只是轻度的伤害自己可能就像一个生重病的人过量服药一样。

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But a German woman is reported by doctors to be seriously ill.

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The ASA says it doesn't wish to "disregard anyone's beliefs, but specific claims targeted at people who may be seriously ill must comply with the rules on substantiation and social responsibility that apply to all other advertising".

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Pistons coach Lawrence Frank returned after missing six games to be with his seriously ill wife.

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