Chinese champion athletes Zhou Yafei (L) and Zhang Yining attend an English language class at the University of Wisconsin-Madison, in Madison city, Wisconsin, United States, April 25, 2011. [Photo/Xinhua]

Freestyle skiing champion Han Xiaopeng listens during an English language class at the University of Wisconsin-Madison, in Madison city, Wisconsin, United States, April 25, 2011. [Photo/Xinhua]