How to run in a short time to improve endurance and speed?

怎样在短时间内提高跑步耐力和速度？

youdao

At the same time, most of our long runs are endurance-focused.

同时，我们的长距离跑大多数是以耐力为主。

youdao

At the same time, most of our long runs are endurance-focused.

同时，我们的长距离跑大多数是以耐力为主。

youdao