And I'm glad that I did because being a professional runner is really, really hard.

我很高兴，因为当一业赛跑选手是十分艰难的。

Well, there are lots of fantastic runners. They come from all over the world.

呃，有很多很棒的赛跑选手，他们来自世界各地。

Nkoku is pulling away from the other runners.

【pull】恩科库把其他赛跑选手都甩在了后面。

Two of the competitors failed to turn up for the race.

【competitor】赛跑选手中有两比赛时有场。

Glancing down the list of runners, I noticed a familiar name.

【down】我往下扫了一眼赛跑选手的名单，注意到了一熟悉的名字。

The runners are taking up their positions on the starting line.

【take】赛跑选手们在起跑线上各就各位。

So two of the fastest women's marathons in history have been run recently by people who were like Olympic 800 meter runners.

因此，近期历史上最快的两次女子马拉松赛，都是由那些类似于奥运800米赛跑选手的人完成的。