"I don't look very flexible now, but I am a lot more flexible than I was."

VOA: standard.2010.02.26

I think we need a whole electricity distribution system, which is more efficient and bigger, more flexible and more appropriate than we have.

我们需要一个更加有效,更加庞大，更加灵活的配电系统，的配电系统。

斯坦福公开课 - 经济学课程节选

I think we need a whole electricity distribution system, which is more efficient and bigger, more flexible and more appropriate than we have.

我们需要一个更加有效,更加庞大，更加灵活的配电系统，的配电系统。

斯坦福公开课 - 经济学课程节选