They may have worked all their lives, but for one reason or another, many Americans have ended up in old age struggling to make ends meet.

VOA: standard.2009.09.05

So, the way it has worked out in practice is that companies, when they have a major announcement to make, they have some kind of web event.

因此,现实中上市公司的做法就是,当公司需要对外公布一条重大消息时,会利用互联网这个渠道

耶鲁公开课 - 金融市场课程节选

They had to give some of them the real vaccine and some of them a placebo vaccine in order that they could really tell if the vaccine worked; you have to have it placebo controlled.

研究者们还须给部分孩子接种真正的疫苗,给另外一些孩子接种空白疫苗,以分辨疫苗是否真的有效,所以你必须使用安慰剂作对照

耶鲁公开课 - 生物医学工程探索课程节选

The head coach of Argentina's national football team, Diego Maradona, congratulated those who worked on South Africa's new football stadiums saying they have done a great job.

VOA: standard.2010.01.22

It worked for them, they didn't have all these chronic diseases like we have, now they had other challenges, infectious diseases primarily, but they didn't have the chronic diseases like we have, like cancer, heart disease, hypertension, hyperlipidaemia, etc., and Diabetes particularly.

这曾对祖先们奏效,他们不像我们会得一些慢性疾病,但他们要面对其他的挑战,主要是传染性疾病,但他们不像我们那样受着慢性疾病的困扰,如癌症,心脏病,高血压和高脂血等,特别是糖尿病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选