Hannah started to think about how she could help, but, of course, there is not a lot one five-year-old can do to solve the problem of homelessness.

汉娜开始思考她该如何能帮上忙，但显然一个五岁的孩子在解决无家可归的问题上能做的事情并不多。

youdao

But there was one small problem with these explanations: this supposedly suboptimal couple had managed to raise two other well-adjusted and perfectly nice boys.

但是治疗师们的断语都存在一个小问题：这对假定不够理想的父母已经培养出另外两个有教养的完美好男孩。

youdao

But there was one big problem.

但是有一个很大的问题。

youdao

"But there is a problem. He is one of the men who have been coming to see me in answer to your advertisement.

VOA: special.2010.04.24

OK. You can see that thing is cutting down the problem in half each time, which is good, but there's one more thing I need to deal with.

这很棒，但是我们还需要处理另外一件事情,让我们仔细来看看,我在开始做之前一直在说，应该先试验试验。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I think--This strategy is one I'm very enthusiastic about but there still remains what's sometimes called the "Hard Problem of Consciousness" and this involves subjective experience.

这是我所热衷的策略,但却依然存在着,所谓的"意识难题",而这牵涉到个体的主观感受

耶鲁公开课 - 心理学导论课程节选

But there is one problem ministers have yet to solve.

ECONOMIST: Regional government

But there was one little problem: My hippopotamus didn't have the correct hardware in the back to properly connect my laptop.

CNN: Apparently This Matters: $1,300 HDMI cables

But there's one problem: Incumbents who jump into disruptive new markets invariably find that the amateurs have aced the core competancies and now command the sales and distribution choke points.

FORBES: Digital rules: The High-Margin Danger Zone