I do this sport first and foremost because I love it.

VOA: standard.2010.02.23

But this is not a spectator sport.

但是你们不能只做观众

耶鲁公开课 - 基础物理课程节选

The sport,science and art of rock climbing is our subject this week.

VOA: special.2009.12.09

This helped people understand and enjoy the sport even more.

VOA: special.2009.05.01