Helping breeders quickly develop better varieties of all these crops will be crucial as the world population tops 9 billion by 2050 in the face of a changing climate.

VOA: standard.2010.02.01

It's about changing our interpretation of the world, of what's happening to us, of our achievements, of our failures.

要改变我们对世界的诠释，以及我们的遭遇，成就，失败。

哈佛公开课 - 幸福课课程节选

It's not a good thing if you're just looping and checking some condition, but never actually changing the state of the world.

这不是一个好事情，如果你只是循环,检查一些条件，但是永远不要改变世界上的国家。

哈佛公开课 - 计算机科学课程节选

Chris Flavin, president of the environmental research group Worldwatch Institute in Washington,said "The world has made enormous progress in changing policies, in investing in new technologies, in general raising awareness about environmental problems.

VOA: standard.2010.01.23

So the nutrition landscape and the physical activity landscape is changing and is sweeping way across the world.

营养和人类日常活动的范畴已日渐改变,且该影响已经席卷全球

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

For instance giving the prize to Mikhail Gorbachev for changing the world completely and now to President Obama who is contributing to improve the international climate, to strengthen the international bodies such as the U.N.

VOA: standard.2009.10.09

The world is changing and The Wall Street Journal is flagging.

世界在改变,《华尔街日报》却在日益萎缩

耶鲁公开课 - 金融市场课程节选

to say 'get real.' What is dangerous is to commit "This is extraordinary, to spend a whole lot of money that we might not have on a system that most certainly won't help when the world is changing, when we're facing new threats, where now more and more military experts are saying there are different alternatives."

VOA: standard.2010.04.30

I think we must remember that there were people creating and repeating, and working out, and changing a poetic tradition that started in the Mycenaean world and lasted for the rest of Greek history.

我想我们必须记住,这些进行创造和传承的人民,他们仔细刻画,发展成了诗歌的传统,从迈锡尼社会开始,一直延续到希腊历史的剩余部分

耶鲁公开课 - 古希腊历史简介课程节选

Also, the world's diet is changing to look like that of America.

同样地,世界饮食状况的改变,和美国的情况也很相似

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Again, we have to ask ourselves, we have to start thinking of the question about what does this mean for doing something about changing the world's diet, changing the nation's diet, changing the world's diet?

让我们来问问自己,考虑一下这个问题,改变一个国家的饮食文化,改变这个世界的饮食,这意味着什么

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选