Some people in less-developed countries feel uncomfortable that they are just slavishly copying other, more advanced countries; but, they have to recognize that is what everybody has been doing all along.

欠发达国家的人,对他们模仿其他发达国家的理论发明，感到不安;,但是他们应该知道,大家一直都在这么做。

耶鲁公开课 - 金融市场课程节选

Some people say that developed countries are more responsible for fighting global warming

有的人说发达国家更应该对应对全球变暖负责，

全球变暖和发达国家 - SpeakingMax英语口语达人