But farmers had learned the hard way they couldn't rely on just one crop, so they planted more corn, peaches,and figs.

VOA: standard.2010.08.10

Who's to say they couldn't eat of that and just live forever?

有谁说过不要吃生命树，吃了便能长生不老？

耶鲁公开课 - 旧约导论课程节选

In other words, they couldn't just have named towns that used to be Mycenaean, but were still around, so that's why they knew them. No, some towns had disappeared, but the names of those towns show up in the catalog of ships.

换句话说,诗人们仅仅利用,现存的迈锡尼文明城镇的名字,是不可能列出名单的,有些城镇消失了,但它们的名字却出现在《船舶名录》中

耶鲁公开课 - 古希腊历史简介课程节选

They were just amazed. They couldn't get over the generosity of people out there.

VOA: standard.2009.12.24

We've gotten, over the last two decades in particular, very sophisticated about taking pictures inside the body allowing doctors to look inside the body and predict things about our internal physiology that they couldn't predict just by looking at us or putting their hands on us.

特别是在近二十年当中,我们对体内造影已经十分熟悉,它使医生能够看到身体内部,并预测我们体内的生理变化,而仅仅是通过,视诊或者触诊是不能预测这些变化的

耶鲁公开课 - 生物医学工程探索课程节选