She decided she would be more useful as a nurse than as a student.

VOA: special.2010.05.26

It appears to be useful in that way but I imagine it does more compelling things these days but I have not seen it myself.

那样看起来仿佛比较有效果,但我想这些天它非常引人注目,只是我自己没看到而已。

哈佛公开课 - 计算机科学课程节选

Speed of response, right, so I actually do tend to respond to some people's emails more quickly than others and that in fact might be a useful indicator.

回复的速度，是的，我可能对某些人的邮件,回复的速度更快一些,而事实上它可能是个有益的暗示。

哈佛公开课 - 计算机科学课程节选

I think they probably also invented a few things, but it was very,very characteristic of the Greeks to borrow from the cultures they encountered and to adapt them, to make them more useful for their own purposes and nothing could be clearer than the alphabet as an example of that.

我认为他们或许也发明过一些事物,但从他们所遇到的文明中进行借鉴,将之应用到自己的生活中去,并使它们更适于希腊人自己的目的,这样的方式也是非常希腊风格的,也没有什么,能比字母表这个例子更能清晰地说明这点了

耶鲁公开课 - 古希腊历史简介课程节选

And when I'm starting to write lots of lines of code, you know, it's frankly kind of useful to be able to see more on the screen at once without having to scroll.

当我开始写很多行代码的时候，你们懂的，这明显是有用的，当你可以在屏幕上看到更多的代码,而不用滚动屏幕。

哈佛公开课 - 计算机科学课程节选