One ought to be interested and to take action on behalf of the polis.

个人应当服从集体的利益,并代表集体的利益行事

耶鲁公开课 - 古希腊历史简介课程节选

And so I think we need to take action as soon as possible to start reducing carbon dioxide emissions.

所以我觉得我们需要尽快开始行动，减少二氧化碳排放。

全球变暖和发达国家 - SpeakingMax英语口语达人

One hopes there is still time for countries to see this coming and take preventive action.

有人希望国家还有时间,来发现问题并采取预防措施

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We're going to start talking about vaccines which is really sort of applied immunology: trying to take immunological concepts and put them into action or to engineer them in some way.

我们将会从,属于应用免疫学范畴的疫苗问题讲起,以便把免疫学上的概念,同实际应用或者某种工程学应用联系起来

耶鲁公开课 - 生物医学工程探索课程节选