He said for the first time, the rate of deforestation has decreased around the world.

VOA: special.2010.04.06

Let me disclaim, too, we're by no means perfect so the Harvard courses APP that a lot of you used on the web to shop for courses, we recently sent out a form to get feedback from everyone because we don't doubt that it was imperfect the first time around, but we're going to iterate and make amends with that.

我不是说，我不是说要完美,你们大部分使用哈佛大学课程APP来在网上选课,我们最近给你们发了一个表单，从你们那里,得到反馈，因为我不怀疑,第一次时它是有瑕疵的,但是我们将反复地道歉。

哈佛公开课 - 计算机科学课程节选

Well, the first line of code, I'll fix the purple next time around so it's more legible.

第一行代码，我用紫色标记,这样增加了可读性。

哈佛公开课 - 计算机科学课程节选

For the first time, scientists around the world had a limitless number of cells they could use to test the effects of diseases, medicines and chemicals.

VOA: special.2010.07.21

In 1852, around that time, this might have been the first course that was offered in engineering in the country: it was taught at Yale in civil engineering in 1852 even Yale students don't know this; what a long, distinguished history of engineering that their own institution has.

在一八五二年,那个时候,这可能是最早开设的一门课程,在国内的工程学方向,它就是一八五二年开始讲授的土木工程,甚至是耶鲁自己的学生都不知道这些,他们所在的学院有着,如此独特而悠久的历史

耶鲁公开课 - 生物医学工程探索课程节选