Here are three ways to choose a realistic marathon time goal, which will help you decide how fast to train and how fast to run on race day.

下面有三种决定现实的马拉松的时间目标的方法，这将帮助你决定你在锻炼时跑多快，正式比赛那天又是多快。

youdao

Running up a hill too fast not only hurts, it can also ruin a run or a race.

山坡上跑不仅会让你受伤，还会摧毁你的跑步或比赛。

youdao

When you start a run or race too fast, all of your physiological systems spike.

当您训练或比赛起步太快时，您所有的生理系统开始高速运转。

youdao