You start by running 5 km, move up to a 10 km, then a half marathon.

你先跑5公里，再跑10公里，然后跑半程马拉松。

youdao

But last year, when I decided to train for my first marathon, I decided that I needed to start running in the mornings if I was to have any time left for my family.

但从去年开始我决定为人生第一次马拉松比赛进行训练，所以我决定每天要早起去跑步，这样才能给家人留下更多时间。

youdao

If you're doing a long run or race (such as a marathon), you can do a "salt shot" before you start running, to get some extra salt.

如果是为了长跑或者参加竞赛(如马拉松)，你还可以在起跑前做一点“补盐”活动，以摄取更多的盐分。

youdao

Will the New York marathon start subjecting finish-line spectators to security checks?

WSJ: N.Y.'s Runner-in-Chief Honors Boston

Like the marathon, start times are staggered.

WSJ: Up, up and away: Racers climb NYC's Empire State

There were the usual nerves as the runners limbered up at the start of the marathon, especially for those taking part in their first 26-mile race.

BBC: London Marathon runners 'determined' after Boston