However, RadcIiffe has not ruled out(排除) m the future chasing her "final" world record time and questioned sayings that marathon runners have the ability in their career to produce only four or five world-class times. "I don't think that -- althoughI can't put a number on it," ...
A common analogy explains such domination, as one could imagine a train heading south at 60 miles per hour, while its first car houses a runner who speeds northward toward the back car at 6 miles per hour; the power of the southern train always wins, as does the wrap over the helix. ...