The most worrisome problem comes from the fact that about one-third of crime cases were committed by the juvenile and 53% of criminals in jails are youngsters below 25.

最令人担忧的问题是，大约三分之一的犯罪案件是由青少年犯下的，监狱里53%的罪犯是25岁以下的青少年。

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The problem is, housework is often overlooked as work, even though it is often as laborious (or in some cases, more so) as any paid job.

问题是，家务劳动作为工作，经常被忽视，尽管它往往与任何有偿工作一样辛苦（或在某些情况下，更辛苦）。

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Part of the problem is that the rating agencies were rating their securities that they were investing in as AAA, in many cases.

存在的一个问题是，信用评级机构对他们投资的大部分债券都给予了 AAA 的评级。

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is an expert on the problem. He says about twenty percent of the cases involve victims from Mexico -- the largest number of any foreign country.

VOA: special.2010.06.14

And I'm going to show you an example in a 1 second, just to drive this home, but notice the characteristics. In the first two cases, the problem reduced by 1 at each step.

在前面两个例子里,每一部问题的规模缩小了,不管是迭代的还是递归的，这表明这个问题的复杂性可能是线性的。

麻省理工公开课 - 计算机科学及编程导论课程节选

The problem is then that these were sold to low-income people, in many cases, who didn't understand what they were getting and that after two years the interest rate would reset up.

问题是贷款在一开始是发放给低收入人群,很多情况下,那些人并不理解这种贷款,或者说他们不知道利率在两年后会重设

耶鲁公开课 - 金融市场课程节选

Its executive secretary, Ivy Josiah, says the authorities' response to problem cases is improving.

CNN: Malaysia's Secret Vice

That's in the same ballpark as the other two problem cases.

BBC: Icelandic lessons for the eurozone

It warned that this was particularly a problem in cases where an establishment only had a small number of reviews.

BBC: TripAdvisor rebuked over 'trust' claims on review site