As you're aware, this is not a new problem.

正如你所了解的，这不是一个新问题。

《牛津词典》

This is a citywide problem that has to be addressed as an emergency.

这是个全城性的问题，必须当做紧急事件对待。

《柯林斯英汉双解大词典》

The government must not use this initiative as a means of resolving the pension problem through the back door.

该政府绝不可使用这种方式，采取不正当的措施解决养老金问题。

《柯林斯英汉双解大词典》

He said this is often seen as a problem for Mali.

VOA: special.2010.03.30

In fact, better than that, this guy is already sorted as well because I whittled that problem down to size 1.

事实上，更好的结果是这个杯子也是有序的了,因为我已将这个问题的规模削减到只有1个元素。

哈佛公开课 - 计算机科学课程节选

This is an interesting question: do they solve the moral hazard and adverse selection problem as well as banks do?

一个有意思的问题出现了,他们可以向银行那样,处理好道德风险以及逆向选择问题吗

耶鲁公开课 - 金融市场课程节选

But the President believes that we have to have balance, we have to -- and that we have to be sure that we protect the most vulnerable in this nation as we approach this problem.

WHITEHOUSE: Press Briefing

Large areas of North and South America, Australia, Asia and Europe have experienced a serious decline in crop productivity this century as a result of this problem.

BBC: GM plant battles salt

Yet, the United States Senate demonstrated this week that it does not see this as a problem of any great urgency.

CNN: Not all terrorism is equal