But instead of wheels, it sits on steel runners that race along the ice.

VOA: special.2010.02.10

But Roger Bannister continued to train and work hard, not harder than the rest of the runners, but as hard as the top runners in the world.

但Roger，Bannister坚持苦练，不比别的跑手练得更苦，但和世上别的跑手一样苦练。

哈佛公开课 - 幸福课课程节选

But the researchers do not suggest that runners immediately start running barefoot.

VOA: special.2010.02.03