But the president's image has taken a hit in recent months as the opposition has gained traction, Quinnipiac University pollster Peter Brown "Personally,They like him, Americans like Barack Obama,"

VOA: standard.2009.12.29

Right, OK. So what I do to open the book is to ask the reader to image that they walking past a shallow pond, maybe somewhere in the park or or university campus.

好的，我在这本书的开篇,请读者想象这样一个画面，你走过,一个浅浅的池塘，可能是公园里,或是大学校园里。

普林斯顿公开课 - 人性课程节选