And if you don't kill us I'll do my best to protect you.'" Swan has kept the promise, his eyes opened to environmental problems made worse by a warming climate.

VOA: standard.2009.12.10

The British Government will never promise to pay you 10% more each year because they can't do it.

英国政府永远都不会承诺给你们,每年支付你们高于10%的利息,因为他们根本就做不到

耶鲁公开课 - 金融市场课程节选

That is, promise that they will do well-- you see this all the time.

例如他们承诺能够获得高额收益率,你时常能听到这种论调

耶鲁公开课 - 金融市场课程节选

Well what can you do? Well you can promise miracles, there's very little control over these sorts of things, you can distort the science, you can lie about what you do and nobody will come after you.

那么你会做什么呢,你可以承诺奇迹,这很难给予控制,你可以歪曲科学,你可以说谎,隐瞒你的作为,也没有人会找你麻烦

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选