So it's a world problem.

所以这是一个世界性的问题。

youdao

The world is not the last word. You remember, it's not like a mathematical problem so there's no solution.

世界也不是最后的定论，你们记住，哲学问题不像数学问题，因此没有答案。

youdao

The only problem with this world; it's a little harder to play in.

世界范围内使用这项技术只有一个阻碍：要大家全盘接受它有点儿难。

youdao

And since it's a global problem,he adds, it will always be helpful for cities around the world to exchange ideas and experiences to benefit from each other's innovative solutions.

VOA: standard.2010.07.26

It's a difficult problem that not everyone is smart -they vary in their ability -so we try to make a world in which it's pretty safe for the small investor who's not paying attention.

不是所有人都是聪明人,这是个难题,大家能力不同,所以我们试图营造一个环境,一个让小投资者感到安全的环境,而无需忧心忡忡

耶鲁公开课 - 金融市场课程节选