The tribal chiefs asked for the president's help with problems facing their people.

VOA: special.2009.11.13

And what's striking about these is--it's not-- these are not just sort of big, screwy problems of messed up people.

而更加惊人的是,这些并不是只疯子们,才会拥有的严重且古怪的心理问题

耶鲁公开课 - 心理学导论课程节选

Given that we have the largest Internet population, it's likely that we will be able to encounter new problems before American people encounter.

中国的互联网用户是最多的，中国很有可能,将在美国人之前遇到新的问题。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

"I think a film like this can make a difference by raising people's awareness of not only the problems that are out there, because a lot of films are gloom and doom, but solutions that are out there.

VOA: special.2009.03.25

What do they do? One of the problems that it produces is the more people you have, up to a point that's good.

他们都干些什么呢,其中一个问题是,人越多,产出就越大,这在达到临界点之前是好事

耶鲁公开课 - 古希腊历史简介课程节选

"The problem with that body of research is that it's difficult to interpret because obviously people with existing mental health problems use cigarettes to self-medicate."

VOA: standard.2010.06.15

So let's not put him only on the spot; there's a whole bunch of us in this room and we can actually apply this same idea not to these phone books but actually to other real world problems, there's a whole bunch of people in this room.

所以我们不要只让他一个人体验,教室里还有一大帮人,其实这种方法不仅可以用来查找电话簿,还可以应用到现实生活当中,教室里有这么多人。

哈佛公开课 - 计算机科学课程节选

Georgian Interior Ministry spokesman Shota Utiashvili told VOA that huge problems remain from last year's war, including the large number of people displaced by the fighting.

VOA: standard.2009.08.26

One of the big problems with studying human diseases is that you can study how they occur in people but there's only a limited amount that you can learn from people.

在人类疾病研究中的一个难题是,你有能力研究发病原因,但以人类为样本做研究却是备受限制

耶鲁公开课 - 生物医学工程探索课程节选

"because the virus can spread rapidly, but what we're seeing so far is a pretty stable position as far as the virus is concerned, it's producing relatively mild illness in most people, but in a small proportion it's causing serious problems and we have in place the plans in our health care system to deal with those problems,".

VOA: standard.2009.07.31