His estimate of half a million HIV-positive cases was based on an extrapolation of the known incidence of the virus.

他的50万HIV阳性病例的估计是基于对已知病毒发病率的推断。

《柯林斯英汉双解大词典》

Some cases of arthritis respond to a gluten-free diet.

不含谷蛋白的饮食对一些关节炎病例有疗效。

《柯林斯英汉双解大词典》

What is needed in such cases is a calm appraisal of the situation.

在此类情况下需要的是对形势的冷静估计。

《柯林斯英汉双解大词典》

So when I had a handful of these cases, it seemed to me then there was likely something worth investigating.

VOA: special.2010.02.24

You don't want to just ignore it, but in cases like that, it's usually a small fraction of the total.

你不能直接把它忽略掉,但在像这样的情形下，它一般是。

麻省理工公开课 - 热力学与动力学课程节选

In fact, he even claims -- and he does this explicitly in Areopagitica he even claims to be in favor of censorship in a number of cases.

实际上，他更声明并且明确地在《论出版自由》中,他更在一些案例中声明他支持出版控制。

耶鲁公开课 - 弥尔顿课程节选

Mutated versions of the gene are believed to be responsible for up to a third of cases of breast cancer in families with a history of the disease.

BBC: Prostate cancer linked to mutant gene

But there are only a few cases where we know the relationship of a specific mutation to a specific effect, and also only a small number of cases where an effect is determined by a single gene rather than the combined effects of hundreds or thousands of genes.

FORBES: So Much Hype, So Little Substance

Then as now, it was understood that a few cases of shocking violence could silence a multitude.

FORBES: Fred Hiatt's Casual Disrespect for the Victims of Stalinism