I won't say as he hasn't been ill a good bit.

没错，他没少生病。

youdao

Methinks the power to do herself so ill a turn was dearly bought.

我认为把她自己害得这么惨的魔力是用高价买来的。

youdao

He's been ill (for) a long time.

他生病很久了。

《牛津词典》

"We think that you ought to have a background check at gun shows. We think you ought to have a background check so that people who are dangerously mentally ill aren't getting their hands on guns."

VOA: standard.2010.04.19

I also advocated it as a right for autonomous adults to choose if they are eternally ill.

我还主张将选择安乐死作为自主的成年人的一项权利,使他们在患有绝症的时候可以有所选择。

普林斯顿公开课 - 人性课程节选

In particular, what happens is he is given a drug that makes him violently ill, extremely nauseous.

具体情况是这样的，在治疗过程中，心理学家喂他吃一种药,使他变得难受至极，特别恶心。

耶鲁公开课 - 心理学导论课程节选

If, sadly, you are so ill that a doctor or other suitably qualified medical practitioner is prepared to give written confirmation that you are expected to die within the following 12 months, then you are permitted to take the whole amount in cash as a special serious ill-health payment.

BBC: Pension planning: When to take a cash lump sum

The mother of a Suffolk woman who is critically ill after a snowboarding accident in France has travelled to meet her daughter's rescuers.

BBC: Emily Watts

That it struggled to hold a parliamentary seat against an absent opponent bodes ill for a general poll.

ECONOMIST: A vote in the capital, despite a state of emergency