In the field of stem cells, China is showing that it can do world-class science.

在干细胞研究方面，中国已经达到世界先进水平。

youdao

Only through focus can you do world-class things, no matter how capable you are.

不管你的能力如何，只有透过专注你才能做世界级的事。

youdao

What do World Cup fans think about the country's much derided viticulture?

这些世界杯球迷是如何看待这个国家的葡萄酒酿造工艺呢？

youdao

The United Nations says more than two and a half billion people around the world do not have good sanitation.

VOA: special.2010.03.15

And I conclude that we do have an obligation, to give significantly to help the world's poor.

我认为，我们的确有责任，慷慨地捐赠，来帮助世界上的贫困人口。

普林斯顿公开课 - 人性课程节选

What do you think is the reason for San Francisco being such a diverse place with people from all around the world?

为什么旧金山能聚集全世界各个地方的人呢？

移民者的都市 - SpeakingMax英语口语达人

But if expanding access in the developing world will do little to increase emissions, it also follows that reducing emissions in the developing world will do little to reduce emissions globally.

FORBES: Sustainable Energy for All: How to Fight Poverty and Climate Change

But transmitting to young people the sense that this is really their world for the making and that on issues like climate change or economic inequality or how do we deal with world health issues or how do we deal with conflict, that in all these areas, creating a more peaceful, prosperous world is up to them.

WHITEHOUSE: THE WHITE HOUSE

We do need world class academic research being done, and that is done by an elite.

BBC: Breakfast with Frost